CN211373321U - Heat exchange fin and heat exchanger - Google Patents
Heat exchange fin and heat exchanger Download PDFInfo
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- CN211373321U CN211373321U CN201922028938.5U CN201922028938U CN211373321U CN 211373321 U CN211373321 U CN 211373321U CN 201922028938 U CN201922028938 U CN 201922028938U CN 211373321 U CN211373321 U CN 211373321U
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Abstract
The utility model belongs to the technical field of the heat exchanger is made, more specifically relates to a heat exchanger fin and heat exchanger. The heat exchange sheet comprises a metal thin plate and a metal wire mesh, and a first through hole used for being connected with the heat exchange tube is formed in the metal thin plate; the metal wire mesh is laid on the surface of the metal sheet and fixed on the surface of the metal sheet through diffusion welding. The utility model provides a pair of heat exchanger fin and heat exchanger, heat exchanger fin adopt woven wire and sheet metal's composite construction, and the disturbance when can increase again the fluid flow through such as air of the area of contact of fluids such as woven wire greatly increased air will show reinforcing heat exchange efficiency. The metal wire mesh and the metal sheet are welded into a whole by diffusion welding and are connected with the heat exchange pipe wall by interference fit, so that the metal sheet, the metal wire mesh and the heat exchange pipe wall can be ensured to be in close contact, the thermal resistance between the heat exchange pipe and the heat exchange fins is reduced, and the heat exchange efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of the heat exchanger is made, more specifically relates to a heat exchanger fin and heat exchanger.
Background
The heat exchanger is also called as heat exchanger, is an energy-saving equipment for transferring heat between two or more than two kinds of fluids with different temperatures, transfers heat from the fluid with higher temperature to the fluid with lower temperature, and makes the temperature of the fluid reach the index specified by the flow so as to meet the requirement of process conditions, and is also one of main equipment for improving the utilization rate of energy. The heat exchanger plays an important role in petroleum, chemical engineering, metallurgy, heating, refrigeration and air conditioning, machinery, food, pharmacy, energy power, pressure vessels and other industrial production, can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in engineering application, and is widely applied.
The heat exchange efficiency is the most important index of the heat exchanger, the heat exchange efficiency is improved, the volume of the heat exchanger can be reduced, the heat exchange strength of the heat exchanger can be improved, and meanwhile, the energy can be saved, the consumption can be reduced, the fluid pressure drop can be reduced, and the stability of the heat exchanger can be improved in the operation. Therefore, the improvement of the heat exchange efficiency of the heat exchanger is an important content of scientific research and technical development in the field of heat exchangers and an important direction for the development of the heat exchangers.
The finned tube heat exchanger is one widely used heat exchanger and has the structure that heat exchange fins with pipe holes are connected serially with heat exchange pipe bundle. The heat exchange tube is in tight contact with the tube hole of the heat exchange fin in an interference fit manner, so that the thermal resistance between the heat exchange tube and the heat exchange fin is reduced. When the heat exchanger is in operation, hot or cold fluid flows through the tubes, and the heat or cold is transferred to the heat exchange fins and then is dissipated by the heat exchange fins. Because the interval of the heat exchange plates is small, and the heat exchange plates are generally metal sheets, when fluid such as air flows through the heat exchange plates, the contact area between the fluid and the heat exchange plates is limited, and the heat exchange efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome the defect that heat exchange efficiency is low among the above-mentioned prior art, provide a heat exchanger fin and heat exchanger, can effectively increase heat transfer area, improve the heat exchange efficiency of heat exchanger.
In order to solve the technical problem, the utility model discloses a technical scheme is: a heat exchange fin comprises a metal sheet, wherein a first through hole used for being connected with a heat exchange tube is formed in the metal sheet; the metal wire mesh is fixed on the surface of the metal sheet. The contact area of the fluids such as air and the like is greatly increased by the wire mesh, the disturbance of the fluids such as air and the like during flowing can be increased, and the heat exchange efficiency is obviously enhanced.
Further, the wire mesh is fixed on the surface of the metal sheet by welding. The metal wire mesh and the metal sheet are welded into a whole and are connected with the outer wall of the heat exchange tube in an interference fit manner, so that the metal sheet, the metal wire mesh and the outer wall of the heat exchange tube can be ensured to be in close contact, and the thermal resistance between the heat exchange tube and the heat exchange fins is reduced.
Preferably, the wire mesh is fixed to the surface of the metal sheet by diffusion welding. The metal sheet and the metal wire mesh form a composite structure through diffusion welding, and in the process of diffusion welding, the metal sheet and the metal wire mesh, and metal wires of the metal wire mesh form a whole through diffusion welding.
Preferably, the metal sheet is located at the middle position of the metal wire mesh. In practical application, a plurality of metal sheets can be arranged, and each metal sheet is diffusion-welded on the metal wire mesh; preferably, the metal sheet may be circular, the wire mesh is determined by the shape of the heat exchanger, the center position of the wire mesh coincides with the center position of the metal sheet, and holes are formed in the center positions of the wire mesh and the metal sheet, that is, the first through hole and the second through hole are also completely coincident and are used for penetrating the heat exchange tube.
Preferably, the planar area value of the metal sheet is smaller than that of the metal wire mesh. Like this, can guarantee that the surface of sheet metal is whole to be covered with the wire mesh, on the other hand stretches out the outside wire mesh in sheet metal edge, also can play the effect of disturbance air current, makes the air current become the turbulent flow, increases the area of contact of heat exchanger fin and air simultaneously, can increase the heat exchange efficiency between air current and the heat exchanger fin.
Preferably, the wire mesh is provided with a second through hole corresponding to the position of the first through hole, and the first through hole and the second through hole are overlapped. When the metal wire mesh is installed, the metal wire mesh can be firstly paved on the surface of the metal sheet, then the metal wire mesh and the metal sheet are subjected to diffusion welding, and finally the metal sheet and the metal wire mesh are punched, so that the first through hole and the second through hole can be completely overlapped, and the metal wire mesh is convenient to install.
The utility model discloses still provide another kind of heat exchanger fin, including wire mesh and a plurality of sheet metal the wire mesh on be equipped with a plurality of second through-holes that are used for being connected with the heat exchange tube, sheet metal on be equipped with the first through-hole that corresponds with the second through-hole, all be fixed with a sheet metal on the wire mesh surface of each second through-hole position, the first through-hole on the sheet metal and the second through-hole coincidence setting on the wire mesh one by one. A plurality of second through holes are formed in the metal wire mesh, a metal sheet covers the surface of the metal wire mesh at each second through hole, the first through holes of the metal sheet are overlapped with the second through holes of the metal wire mesh, and the heat exchange tube sequentially penetrates through the first through holes and the second through holes; when the heat exchange fins are used, the wire mesh of each heat exchange fin is a whole, a plurality of metal thin plates are arranged on the wire mesh at intervals according to the positions of the second through holes, the metal thin plates are in contact connection with the heat exchange tube, the contact area between the metal thin plates and the heat exchange tube is increased, disturbance air flow is achieved through the wire mesh, the contact area between the heat exchange fins and air is increased, and therefore heat exchange efficiency is improved.
Furthermore, the metal sheet is fixed on the surface of the metal wire mesh by diffusion welding, and the metal wires of the metal wire mesh are mutually connected by diffusion welding to form a whole.
Furthermore, a space is arranged between every two adjacent metal sheets. The area of the metal thin plates is required to be as small as possible, and an interval is required to be arranged between every two adjacent metal thin plates, so that the metal thin plates are prevented from completely covering the metal wire mesh, and the metal wire mesh cannot disturb the air flow.
Furthermore, the area value of the metal wire mesh is larger than the total area value of the plurality of metal sheets after being tiled, and the edges of the metal sheets positioned on the boundary are all positioned in the boundary of the metal wire mesh. The metal sheet is required to fall into the area of the metal wire mesh, the edge of the metal sheet cannot stretch out of the edge of the metal wire mesh, and the metal wire mesh is prevented from blocking the metal wire mesh to disturb air flow.
The utility model also provides a heat exchanger, including the heat exchange tube, still include above the fin, the fin be equipped with a plurality ofly, a plurality of fin interval cup joints the heat exchange tube on. The plurality of heat exchange fins are sequentially connected on the heat exchange tube in series to form a fin-series type heat exchanger.
Preferably, the plurality of heat exchange plates are arranged at equal intervals. The heat exchange sheets are arranged at equal intervals to improve the heat exchange efficiency.
Preferably, the first through hole of the metal sheet is connected with the heat exchange tube in an interference fit manner.
Preferably, the second through hole of the wire mesh is connected with the heat exchange tube in an interference fit manner.
The heat exchange sheets are connected with the heat exchange pipe wall in an interference fit manner, so that the metal thin plate and the metal wire mesh can be ensured to be in close contact with the heat exchange pipe wall, the thermal resistance between the base pipe and the heat exchange sheets is reduced, and the heat exchange efficiency is improved.
The utility model provides a manufacturing method of heat exchanger, including following step:
s1, determining the overall structure and size of the heat exchanger according to the design and performance requirements of the heat exchanger, wherein the overall structure and size comprise the diameter, the number and the distribution of heat exchange tubes and the spacing and the number of heat exchange fins;
s2, selecting materials of a metal wire mesh and a metal sheet, wherein the materials of the metal wire mesh and the metal sheet can adopt copper or copper alloy, aluminum or aluminum alloy, steel or stainless steel, and the metal wire mesh and the metal sheet adopt the same material;
s3, determining the shape, size and thickness of the metal wire mesh and the metal sheet, wherein the overall size of the metal wire mesh is determined by the structure of the heat exchanger; the metal sheet is in a round or square structure, and the plane area value of the metal sheet is larger than the section area value of the heat exchange tube, for example, the diameter value of the metal sheet is 5-20mm larger than that of the heat exchange tube; the thickness of the metal wire mesh is the same as that of the metal sheet, and the plane area value of the metal sheet is less than or equal to that of the metal wire mesh;
s4, processing metal sheets and a metal wire mesh into designed shapes according to the structural requirements of the heat exchanger, placing the metal sheets on the metal wire mesh according to the distribution form of heat exchange tubes of the heat exchanger, pressing the metal sheets and the metal wire mesh tightly, and placing the metal sheets and the metal wire mesh in a heating furnace for heating so that metal wires of the metal wire mesh and the metal wires of the metal wire mesh are connected into a whole through diffusion welding; so as to enhance the heat conduction of the metal wire mesh, the metal wire mesh and the metal sheet and the heat exchange tube;
s5, punching pipe holes in the metal thin plate and the metal wire mesh which are subjected to diffusion welding according to the distribution form of the heat exchange tubes, wherein the pipe holes are in interference fit with the heat exchange tubes; the close contact between the metal sheet and the metal wire mesh and the heat exchange tube wall is ensured, so that the thermal resistance between the heat exchange tube and the heat exchange fins is reduced;
s6, pressing the metal sheet and the metal wire mesh punched with the pipe holes and the heat exchange pipe, and finally finishing the manufacture of the heat exchanger according to a conventional heat exchanger manufacturing method.
Compared with the prior art, the beneficial effects are: the utility model provides a pair of heat exchanger fin and heat exchanger and manufacturing method thereof, heat exchanger fin adopt the composite construction of woven wire and sheet metal, and the disturbance when can increase the fluid flow through such as air again of the area of contact of fluids such as woven wire greatly increased air will show reinforcing heat exchange efficiency. The metal wire mesh and the metal sheet are welded into a whole by diffusion welding and are connected with the heat exchange pipe wall by interference fit, so that the metal sheet, the metal wire mesh and the heat exchange pipe wall can be ensured to be in close contact, the thermal resistance between the heat exchange pipe and the heat exchange fins is reduced, and the heat exchange efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of a heat exchanger fin in embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of a heat exchanger fin in embodiment 2 of the present invention.
Fig. 3 is a schematic top view of the connection between the heat exchanger fin and the heat exchange tube of the present invention.
Fig. 4 is a schematic side view of the connection between the heat exchanger fin and the heat exchange tube.
Fig. 5 is a schematic structural diagram of the heat exchanger of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the invention; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the invention.
Example 1:
as shown in fig. 1, the heat exchanger plate comprises a metal thin plate 11, wherein a first through hole 13 for connecting with a heat exchange tube 2 is arranged on the metal thin plate 11; the metal wire mesh type metal wire mesh comprises a metal wire mesh 12, wherein the metal wire mesh 12 is paved on the surface of a metal sheet 11, and the metal wire mesh 12 is fixed on the surface of the metal sheet 11 through diffusion welding. The wire mesh 12 greatly increases the contact area of the fluid such as air and the like, and can also increase the disturbance of the fluid such as air and the like when flowing through, thereby obviously enhancing the heat exchange efficiency. The metal wire mesh 12 and the metal sheet 11 are integrated by diffusion welding and are connected with the outer wall of the heat exchange tube 2 in an interference fit manner, so that the metal sheet 11 and the metal wire mesh 12 can be ensured to be in close contact with the outer wall of the heat exchange tube 2, and the thermal resistance between the heat exchange tube 2 and the heat exchange fins 1 is reduced.
In this embodiment, the metal sheet 11 is located at the middle position of the wire mesh 12. The plane area value of the metal sheet 11 is smaller than that of the metal wire mesh 12. The plane area value of the metal sheet 11 is smaller than or equal to the plane area value of the metal wire mesh 12, so that the metal wire mesh 12 covers the whole surface of the metal sheet 11, and on the other hand, the metal wire mesh 12 extending out of the edge of the metal sheet 11 can also play a role of disturbing air flow, so that the air flow is changed into turbulent flow, and the heat exchange efficiency between the air flow and the heat exchange plate 1 is increased.
Wherein, the wire mesh 12 is provided with a second through hole 14 corresponding to the position of the first through hole 13. During installation, the wire mesh 12 can be firstly laid on the surface of the metal sheet 11, then diffusion welding is carried out between the metal sheet 11 and the wire mesh 12, and finally punching is carried out on the metal sheet 11 and the wire mesh 12, so that the first through hole 13 and the second through hole 14 can be completely overlapped, and the installation is convenient.
Example 2
As shown in fig. 2, the present embodiment provides a heat exchanger plate, which includes a wire mesh 12 and a plurality of metal sheets 11, wherein a plurality of second through holes 14 for connecting with the heat exchanger tube 2 are provided on the wire mesh 12, first through holes 13 corresponding to the second through holes 14 are provided on the metal sheets 11, one metal sheet 11 is fixed on the surface of the wire mesh 12 at the position of each second through hole 14, the first through holes 13 on the metal sheets 11 and the second through holes 14 on the wire mesh 12 are arranged in a one-to-one overlapping manner, wherein the metal sheets 11 are fixed on the surface of the wire mesh 12 by diffusion welding, and the wires of the wire mesh 12 are connected to each other by diffusion welding to form a whole. A plurality of second through holes 14 are formed in the wire mesh 12, a metal sheet 11 covers the surface of the wire mesh 12 at each second through hole 14, the first through holes 13 of the metal sheet 11 are overlapped with the second through holes 14 of the wire mesh 12, and the heat exchange tube 2 sequentially passes through the first through holes 13 and the second through holes 14; when the heat exchange plate is used, the wire mesh 12 of each heat exchange plate is a whole, a plurality of metal thin plates 11 are arranged on the wire mesh 12 at intervals according to the positions of the second through holes 14, the metal thin plates 11 are in contact connection with the heat exchange tube 2, the contact area of the metal thin plates and the heat exchange tube 2 is increased, disturbance air flow is achieved through the wire mesh 12, and therefore heat exchange efficiency is improved.
Wherein, an interval is arranged between every two adjacent heat exchange sheets. The area of the metal sheets 11 should be as small as possible, and a space should be provided between two adjacent metal sheets 11 to prevent the metal sheets 11 from completely covering the metal wire mesh 12, so that the metal wire mesh 12 does not have the effect of disturbing the air flow.
In addition, the area value of the wire mesh 12 is larger than the total area value of the plurality of metal sheets 11 after being tiled, and the edges of the metal sheets 11 located at the boundary are all located within the boundary of the wire mesh 12. The metal sheet 11 should fall into the area of the metal mesh 12, and the edge of the metal sheet 11 cannot extend out of the edge of the metal mesh 12, so as to avoid the metal mesh 12 blocking the metal mesh to disturb the air flow.
Example 3
As shown in fig. 3 to 5, the present embodiment provides a heat exchanger, which includes a heat exchange tube 2 and a plurality of heat exchange fins 1 according to embodiment 1, where the plurality of heat exchange fins 1 are sleeved on the heat exchange tube 2 at intervals. The plurality of heat exchange fins 1 are sequentially connected in series on the heat exchange tube 2 to form a fin-in-series type heat exchanger. The heat exchange plates 1 are arranged at equal intervals. The heat exchange fins 1 are arranged at equal intervals to improve the heat exchange efficiency.
In this embodiment, the first through hole 13 of the metal sheet 11 is connected with the heat exchange tube 2 by interference fit. The second through hole 14 of the wire mesh 12 is connected with the heat exchange tube 2 through interference fit. The heat exchange fins 1 are connected with the wall of the heat exchange tube 2 in an interference fit manner, so that the metal thin plates 11 and the metal wire meshes 12 can be ensured to be in close contact with the wall of the heat exchange tube 2, the thermal resistance between the heat exchange tube and the heat exchange fins is reduced, and the heat exchange efficiency is improved.
The manufacturing method of the heat exchanger provided by the embodiment comprises the following steps:
s1, determining the overall structure and size of the heat exchanger according to the design and performance requirements of the heat exchanger, wherein the overall structure and size comprise the diameter, the number and the distribution of the heat exchange tubes 2 and the space and the number of the heat exchange fins;
s2, selecting materials of a metal wire mesh 12 and a metal sheet 11, wherein the materials of the metal wire mesh 12 and the metal sheet 11 can be copper or copper alloy, aluminum or aluminum alloy, steel or stainless steel, and the metal wire mesh 12 and the metal sheet 11 are made of the same material;
s3, determining the shape and size of the metal wire mesh 12 and the metal sheet 11, wherein the overall dimension of the metal wire mesh 12 is determined by the structure of the heat exchanger; the metal sheet 11 is in a round or square structure, and the plane area value of the metal sheet 11 is larger than the cross-sectional area value of the heat exchange tube 2, for example, the diameter value of the metal sheet 11 is 5-20mm larger than the diameter value of the heat exchange tube 2; the thickness of the metal wire mesh 12 is the same as that of the metal sheet 11, and the plane area value of the metal sheet 11 is less than or equal to that of the metal wire mesh 12;
s4, processing the metal sheet 11 and the metal wire mesh 12 into designed shapes according to the structural requirements of the heat exchanger, placing the metal sheet 11 on the metal wire mesh 12 according to the distribution form of the heat exchange tubes 2 of the heat exchanger, pressing the metal sheet 11 and the metal wire mesh 12 tightly, and placing the metal sheet 11 and the metal wire mesh 12 in a heating furnace for heating, so that the metal wires of the metal wire mesh 12 and the metal sheet 11 are integrated through diffusion welding; to enhance the heat conduction of the wire mesh 12, the wire mesh 12 and the metal sheets 11 with the heat exchange tube 2;
s5, punching pipe holes in the metal sheet 11 and the metal wire mesh 12 which are subjected to diffusion welding according to the distribution form of the heat exchange tubes 2, wherein the pipe holes are in interference fit with the heat exchange tubes 2; the close contact between the metal sheet 11 and the metal wire mesh 12 and the wall of the heat exchange tube 2 is ensured, so that the thermal resistance between the heat exchange tube 2 and the heat exchange fins is reduced;
s6, carrying out press-fitting on the metal sheet 11 and the metal wire mesh 12 punched with the pipe holes and the heat exchange pipe 2, and finally finishing the manufacture of the heat exchanger according to a conventional heat exchanger manufacturing method.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature.
A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. A heat exchange fin comprises a metal thin plate (11), wherein a first through hole (13) used for being connected with a heat exchange tube (2) is formed in the metal thin plate (11); the metal wire mesh is characterized by further comprising a metal wire mesh (12), wherein the metal wire mesh (12) is fixed on the surface of the metal sheet (11).
2. A plate according to claim 1, characterised in that the wire mesh (12) is secured to the surface of the sheet metal element (11) by diffusion welding; the wires of the wire mesh (12) are connected with each other by diffusion welding to form a whole.
3. A plate according to claim 2, characterised in that the sheet metal element (11) is positioned in the middle of the wire mesh (12); the plane area value of the metal sheet (11) is smaller than that of the metal wire mesh (12).
4. A plate according to claim 2 or 3, wherein the wire mesh (12) is provided with second through holes (14) corresponding to the positions of the first through holes (13), and the first through holes (13) coincide with the second through holes (14).
5. The utility model provides a heat exchanger fin, characterized in that, includes wire mesh (12) and a plurality of sheet metal (11) wire mesh (12) on be equipped with a plurality of second through-holes (14) that are used for being connected with heat exchange tube (2), sheet metal (11) on be equipped with first through-hole (13) that correspond with second through-hole (14), wire mesh (12) surface at each second through-hole (14) position all is fixed with a sheet metal (11), first through-hole (13) on sheet metal (11) and second through-hole (14) on wire mesh (12) coincide one by one and set up, are equipped with the interval between every two adjacent sheet metal (11).
6. A plate according to claim 5, characterised in that the metal sheets (11) are secured to the wire mesh (12) surfaces by diffusion welding, the wires of the wire mesh (12) being interconnected by diffusion welding to form a unitary body.
7. A plate according to claim 6, characterised in that the wire mesh (12) has an area value which is greater than the total area value of the plurality of sheets (11) when laid flat, and that the edges of the sheets at the boundary are located within the boundaries of the wire mesh (12).
8. A heat exchanger comprises a heat exchange tube (2) and is characterized by further comprising a plurality of heat exchange fins (1) according to any one of claims 1 to 7, wherein the plurality of heat exchange fins (1) are sleeved on the heat exchange tube (2) at intervals.
9. The heat exchanger according to claim 8, wherein the plurality of heat exchange plates (1) are arranged at equal intervals; the first through hole (13) of the metal sheet (11) is connected with the heat exchange tube (2) in an interference fit manner; the second through hole (14) of the wire mesh (12) is connected with the heat exchange tube (2) in an interference fit manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922028938.5U CN211373321U (en) | 2019-11-21 | 2019-11-21 | Heat exchange fin and heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922028938.5U CN211373321U (en) | 2019-11-21 | 2019-11-21 | Heat exchange fin and heat exchanger |
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| CN211373321U true CN211373321U (en) | 2020-08-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953921A (en) * | 2019-11-21 | 2020-04-03 | 广州铁路职业技术学院（广州铁路机械学校） | Heat exchange sheet, heat exchanger and manufacturing method of heat exchange sheet |
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2019
- 2019-11-21 CN CN201922028938.5U patent/CN211373321U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953921A (en) * | 2019-11-21 | 2020-04-03 | 广州铁路职业技术学院（广州铁路机械学校） | Heat exchange sheet, heat exchanger and manufacturing method of heat exchange sheet |
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