Fin heat exchanger
By setting partition walls inside the heat exchange tubes to divide them into multiple small heat exchange channels, the problem of increased volume and cost of finned heat exchangers is solved, achieving the effects of high-efficiency heat exchange and cost reduction and efficiency improvement.
Patent Information
- Application Number
- CN202422566104.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-10-23
AI Technical Summary
Existing finned heat exchangers improve heat exchange efficiency by increasing the area of heat transfer fins and the diameter of heat exchange tubes, resulting in increased size and cost, which fails to meet the needs of cost reduction and efficiency improvement.
By installing partition walls inside the heat exchange tubes, they are divided into multiple small heat exchange channels, increasing the heat exchange area and the contact area with the fluid medium, improving heat transfer efficiency, and avoiding the need to increase the tube diameter and volume.
By setting partition walls inside the heat exchange tubes, the heat exchange area and heat transfer efficiency are increased, while manufacturing costs and energy consumption are reduced, thus achieving the goal of cost reduction and efficiency improvement.
Smart Images
Figure CN223663788U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fin heat exchanger technical field especially relates to a fin heat exchanger. BACKGROUND
[0002] The heat exchange pipe assembly is mainly applied to the fin heat exchanger and is used for heat exchange to the heat transfer fin to ensure the heat exchange effect of the fin heat exchanger. At present, in order to improve the heat exchange effect, the fin heat exchanger almost all relies on increasing the heat transfer fin heat exchange area to strengthen the heat exchange effect except the innovation of the fin type, also increases the pipe diameter of the heat exchange pipe to increase the heat exchange area and strengthen the heat exchange effect, but the heat exchange efficiency does not obviously increase, which leads to the fin heat exchanger volume bigger and higher energy and manufacturing cost, and cannot satisfy the purpose of reducing the cost and increasing the benefit. SUMMARY
[0003] The utility model provides a kind of assembly of heat exchange pipe and the heat exchanger of fin to solve the method for increasing heat exchange area by increasing fin area and increasing the pipe diameter of heat exchange pipe to improve heat exchange effect, cannot satisfy the problem of reducing the cost and increasing the benefit.
[0004] A kind of heat exchange pipe assembly, including at least two heat exchange pipes and at least one adapter pipe;
[0005] At least one partition wall is arranged in the heat exchange pipe, so that at least two heat exchange flow channels are formed in the heat exchange pipe;
[0006] The heat exchange pipe is arranged in the heat transfer fin along the first direction;
[0007] The adapter pipe is connected between the adjacent two heat exchange pipes, and the at least two heat exchange pipes and the at least one adapter pipe are matched to form a fluid pipe line, and the two ends of the fluid pipe line are respectively connected to the distribution pipe and the collection pipe.
[0008] Preferably, the partition wall includes a first wall arranged along the second direction and / or a second wall arranged along the third direction.
[0009] Preferably, the heat exchange pipe is a metal pipe (preferably an aluminum pipe, and other materials can be used in environments where aluminum pipes cannot be used).
[0010] A fin heat exchanger includes a heat transfer fin, a distribution pipe, a collection pipe and the heat exchange pipe assembly.
[0011] The at least two heat exchange pipes are arranged in the heat transfer fin along the second direction / third direction.
[0012] The distribution pipe and the collection pipe are connected to the two ends of the fluid pipe line.
[0013] Preferably, the number of the heat exchange pipe assemblies is multiple, and the multiple heat exchange pipe assemblies are arranged along the third direction / second direction at intervals.
[0014] Preferably, the heat transfer fin comprises a substrate.
[0015] The substrate is provided with a plurality of uniformly distributed pipe holes, and a wind scoop and a pipe hole inter-turbulent heat transfer device are arranged between adjacent two pipe holes.
[0016] The wind scoop and the pipe hole inter-turbulent heat transfer device are arranged at intervals in the up-down direction, and one side of the pipe hole is provided with a pipe-side turbulent heat transfer device.
[0017] The heat exchange pipe is arranged in the pipe hole.
[0018] Preferably, the pipe hole comprises 2N first pipe holes, N≥1, and the 2N first pipe holes are arranged in a rectangular manner.
[0019] The diameter of each first pipe hole is 6-50mm.
[0020] In the second direction / third direction, the distance between the centers of adjacent two first pipe holes is 16-80mm.
[0021] Preferably, the pipe hole further comprises N second pipe holes, N≥1, and the N second pipe holes are arranged in a rectangular manner, and the second pipe holes are arranged in a staggered manner with the first pipe holes.
[0022] Adjacent two first pipe holes and an adjacent second pipe hole are arranged in a triangular manner.
[0023] The diameter of each second pipe hole is 6-50mm.
[0024] In the second direction / third direction, the distance between the center of the first pipe hole and the center of the second pipe hole is 13-50mm.
[0025] Preferably, the pipe hole is in any one of a circular shape, an elliptical shape and a rectangular shape.
[0026] The heat exchange pipe assembly provided by the embodiment of the utility model is provided with at least one partition wall in the heat exchange pipe, so that at least two heat exchange flow channels are formed in the heat exchange pipe; by this arrangement, the single heat exchange flow channel of the heat exchange pipe is divided into at least two small heat exchange flow channels, the partition wall is directly contacted with the internal fluid medium in the interior of the heat exchange pipe, the heat exchange area between the heat exchange pipe and the fluid medium is greatly increased, the heat exchange area is increased, the heat exchange amount is also increased, therefore, the partition wall is arranged in the interior of the heat exchange pipe, the comprehensive heat transfer efficiency in the interior of the heat exchange pipe is greatly increased, the heat transfer efficiency of the heat transfer fin is increased, the heat exchange effect of the fin heat exchanger is improved; compared with the fin heat exchanger with the same pipe diameter, the heat exchange area can be increased without increasing the pipe diameter of the heat exchange pipe assembly, the volume of the heat exchange pipe assembly is prevented from becoming larger and larger, the manufacturing cost and the energy consumption are reduced, and the purpose of reducing cost and increasing benefit is achieved. BRIEF DESCRIPTION OF DRAWINGS
[0027] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the drawings needed to be used in the following description of the embodiment of the utility model will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without the creative labor for the ordinary skilled in the art.
[0028] Figure 1 is the axial side view of the multi-channel pipe type fin heat exchanger in an embodiment of the utility model;
[0029] Figure 2 is the axial side view of the parallel layer type heat exchange pipe in an embodiment of the utility model;
[0030] Figure 3 is the axial side view of the cross type heat exchange pipe in an embodiment of the utility model;
[0031] Figure 4 is the front view of the heat transfer fin in an embodiment of the utility model;
[0032] Figure 5 is the front view of the wind funnel type rectangular arrangement flat fin in an embodiment of the utility model;
[0033] Figure 6 is the front view of the wind funnel type triangular arrangement flat fin in an embodiment of the utility model.
[0034] Among them, 1, heat exchange pipe assembly;11, heat exchange pipe;12, adapter pipe;13, partition wall;131, first wall;132, second wall;14, heat exchange flow channel;2, heat transfer fin;21, base plate;22, pipe hole;221, first pipe hole;222, second pipe hole;23, wind funnel;24, pipe hole inter-turbulent heat transfer device;25, pipe side turbulent heat transfer device;3, distribution pipe;4, collecting pipe. Detailed Implementation
[0035] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0036] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0038] This utility model embodiment provides a heat exchange tube assembly 1, referring to... Figure 1 , Figure 2 and Figure 3 The heat exchange tube assembly 1 includes at least two heat exchange tubes 11 and at least one transfer tube 12; at least one partition wall 13 is provided inside the heat exchange tube 11 to form at least two heat exchange channels 14 inside the heat exchange tube 11; the heat exchange tube 11 is used to pass through the heat transfer fins 2 along a first direction; two adjacent heat exchange tubes 11 are connected by a transfer tube 12, and the at least two heat exchange tubes 11 and at least one transfer tube 12 cooperate to form a fluid pipeline, and the two ends of the fluid pipeline are respectively used to connect the liquid distribution pipe 3 and the collection pipe 4.
[0039] The first direction is the axial direction of the heat exchange tube 11.
[0040] As an example, the heat exchanger tube assembly 1 includes at least two heat exchanger tubes 11 and at least one transfer tube 12; adjacent heat exchanger tubes 11 are connected by a transfer tube 12, and the heat exchanger tubes 11 are used to pass through the heat transfer fins 2 in a first direction. The at least two heat exchanger tubes 11 and at least one transfer tube 12 cooperate to form a fluid pipeline, and the two ends of the fluid pipeline are respectively used to connect the distribution pipe 3 and the collection pipe 4; in this configuration, the fluid medium (e.g., refrigerant or coolant) in the distribution pipe 3 flows into the fluid pipeline, specifically first into the first heat exchanger tube 11, and then through the adjacent transfer tube 12 to the next heat exchanger tube 11, until it flows to the last heat exchanger tube 11, and finally into the collection pipe 4; in this process, the fluid medium achieves heat exchange in the heat exchanger tubes 11 so that the heat transfer fins 2 can effectively dissipate heat.
[0041] In this example, at least one partition wall 13 is provided inside the heat exchange tube 11 to form at least two heat exchange channels 14 inside the heat exchange tube 11. This arrangement divides a single heat exchange channel 14 of the heat exchange tube 11 into at least two smaller heat exchange channels 14, forming a multi-channel tube. The partition wall 13 is in direct contact with the internal fluid medium inside the heat exchange tube 11, which greatly increases the heat exchange area between the heat exchange tube 11 and the fluid medium. With the increase in heat exchange area, the heat exchange capacity also increases. Therefore, the partition wall 13 inside the heat exchange tube 11 can significantly improve the overall heat transfer efficiency inside the heat exchange tube 11, thereby improving the heat transfer efficiency of the heat transfer fins 2 and improving the heat transfer effect of the finned heat exchanger. Compared with finned heat exchangers of the same diameter, it is not necessary to increase the diameter of the heat exchange tube assembly 1 to increase the heat exchange area, avoiding the increasing volume of the heat exchange tube assembly 1, reducing manufacturing costs and energy consumption, and achieving the goal of cost reduction and efficiency improvement.
[0042] In this example, the partition wall 13 divides the single heat exchange channel 14 of the heat exchange tube 11 into at least two smaller heat exchange channels 14, that is, the heat exchange tube 11 is divided from a large channel into multiple smaller channels. Multi-channel heat and mass transfer is enhanced. The flow within the smaller channels is mostly laminar. As the aperture of the smaller channels decreases, the velocity of the fluid medium in the channels increases, and the heat and mass transfer effect between the fluid medium and the wall also increases. The ratio of heat exchange area to fluid medium volume also increases accordingly. The heat transfer coefficient h is inversely proportional to the diameter d of the smaller channel; that is, the smaller the diameter, the larger the heat transfer coefficient. Reducing the characteristic size of the channels not only greatly increases the heat exchange area but also significantly enhances the transfer characteristics. The size of the smaller channels within the multi-channel system directly affects the flow rate, velocity, and heat and mass transfer effect between the fluid medium and the wall.
[0043] In one embodiment, reference is made to Figure 2 and Figure 3 The partition wall 13 includes a first partition wall 131 disposed along a second direction and / or a second partition wall 132 disposed along a third direction.
[0044] As an example, three structures of the partition wall 13 are presented.
[0045] Reference Figure 2 The first type has a partition wall 13 that includes only a first partition wall 131 arranged along the second direction; the second type has a partition wall 13 that includes only a second partition wall 132 arranged along the third direction. In both of these structures, the interior of the heat exchange tube 11 is divided by either the first partition wall 131 or the second partition wall 132, dividing a single heat exchange channel 14 of the heat exchange tube 11 into at least two smaller heat exchange channels 14, forming a... Figure 2 The parallel-layer heat exchange tube shown has a partition wall 13 inside the heat exchange tube 11 that is in direct contact with the internal fluid medium, which greatly increases the heat exchange area between the heat exchange tube 11 and the fluid medium.
[0046] Reference Figure 3 The third type is a first partition wall 131 arranged along the second direction and a second partition wall 132 arranged along the third direction; in this way, the interior of the heat exchange tube 11 is divided by the first partition wall 131 and the second partition wall 132, dividing the single heat exchange flow channel 14 of the heat exchange tube 11 into at least four smaller heat exchange flow channels 14, forming as follows: Figure 3 The cross-type heat exchange tube shown has a partition wall 13 inside the heat exchange tube 11 that is in direct contact with the internal fluid medium, which greatly increases the heat exchange area between the heat exchange tube 11 and the fluid medium.
[0047] In one embodiment, the heat exchange tube 11 is a metal tube.
[0048] As an example, heat exchange tube 11 is a metal tube, preferably an aluminum tube. In environments where aluminum tubes cannot be used, tubes of other materials can be selected. There is no problem of copper-aluminum separation, recycling is simple and convenient, environmental pollution is reduced, and it is easier to recycle and reuse materials.
[0049] This utility model provides a finned heat exchanger, see reference. Figure 1 and Figure 4 It includes heat transfer fins 2, liquid distribution pipe 3, collection pipe 4 and heat exchange tube assembly 1; at least two heat exchange tubes 11 are arranged at intervals in the heat transfer fins 2 along a second direction / third direction; the liquid distribution pipe 3 and the collection pipe 4 are respectively connected to the two ends of the fluid pipeline.
[0050] The second direction and the third direction are two intersecting directions on the radial plane of the heat exchange tube 11.
[0051] As an example, the finned heat exchanger includes heat transfer fins 2, a distribution pipe 3, a collection pipe 4, and a heat exchange tube assembly 1. The heat exchange tube assembly 1 includes at least two heat exchange tubes 11 and at least one transfer pipe 12. During installation, at least two heat exchange tubes 11 are spaced apart in the heat transfer fins 2 along a second / third direction. Adjacent heat exchange tubes 11 are connected by a transfer pipe 12. Each heat exchange tube 11 passes through the heat transfer fins 2 along a first direction. The at least two heat exchange tubes 11 and at least one transfer pipe 12 cooperate to form a fluid pipeline. The distribution pipe 3 and the collection pipe 4 are respectively connected to the two ends of the fluid pipeline. With this arrangement, the fluid medium (e.g., refrigerant or coolant) in the distribution pipe 3 flows into the fluid pipeline, specifically first into the first heat exchange tube 11, then through the adjacent transfer pipe 12 to the next heat exchange tube 11, until it flows to the last heat exchange tube 11, and finally into the collection pipe 4. In this process, the fluid medium achieves heat exchange in the heat exchange tubes 11, so that the heat transfer fins 2 can effectively dissipate heat.
[0052] In this example, at least one partition wall 13 is provided inside the heat exchange tube 11 to form at least two heat exchange channels 14 inside the heat exchange tube 11. This arrangement divides a single heat exchange channel 14 of the heat exchange tube 11 into at least two smaller heat exchange channels 14, forming a multi-channel tube. The partition wall 13 is in direct contact with the internal fluid medium inside the heat exchange tube 11, which greatly increases the heat exchange area between the heat exchange tube 11 and the fluid medium. With the increase in heat exchange area, the heat exchange capacity also increases. Therefore, the partition wall 13 inside the heat exchange tube 11 can significantly improve the overall heat transfer efficiency inside the heat exchange tube 11, thereby improving the heat transfer efficiency of the heat transfer fins 2 and improving the heat transfer effect of the finned heat exchanger. Compared with finned heat exchangers of the same diameter, it is not necessary to increase the diameter of the heat exchange tube assembly 1 to increase the heat exchange area, avoiding the increasing volume of the heat exchange tube assembly 1, reducing manufacturing costs and energy consumption, and achieving the goal of cost reduction and efficiency improvement.
[0053] The finned heat exchanger in this example is a multi-channel tube-type finned heat exchanger, specifically, multi-channel heat exchange tubes are inserted into heat transfer fins 2 (e.g., flat fins). Large flat-finned tube-type finned heat exchangers are conventional finned heat exchangers with a wide range of applications, but their heat transfer fin 2 efficiency is much lower than that of microchannel finned heat exchangers. Multi-channel tube-type finned heat exchangers apply the high-efficiency characteristics of microchannel finned heat exchangers to the field of large flat-finned tube-type finned heat exchangers, and their development prospects are broad. Compared to conventional flat-finned tube heat exchangers, this design achieves smaller size, less space occupation, lighter weight, less material usage, higher efficiency, and greater energy savings under the same power conditions. Compared to microchannel finned heat exchangers, it features a more mature technology, higher production efficiency, and eliminates the problem of condensate drainage issues encountered with microchannel heat exchangers, making it more suitable for large-scale, high-power applications. This design significantly promotes the upgrading of finned heat exchangers and will have a profound impact on the development of related industries. Furthermore, the presence of multiple partition walls 13 within the heat exchange tube 11 enhances the tube's compressive strength, making its characteristics and strength particularly suitable for use in supercritical finned heat exchangers.
[0054] In one embodiment, reference is made to Figure 1 There are multiple heat exchanger tube assemblies 1, and the multiple heat exchanger tube assemblies 1 are spaced apart along the third direction / second direction.
[0055] As an example, there are multiple heat exchanger tube assemblies 1, which are spaced apart along a third / second direction. This increases the contact area between the heat exchanger tube assembly 1 and the heat transfer fins 2, thereby improving the heat exchange efficiency of the heat transfer fins 2.
[0056] In one embodiment, reference is made to Figure 4 , Figure 5 and Figure 6 The heat transfer fin 2 includes a substrate 21; the substrate 21 is provided with a plurality of uniformly distributed tube holes 22, and in the second direction, a wind duct 23 and a tube hole turbulence heat transfer device 24 are provided between two adjacent tube holes; the wind duct 23 and the tube hole turbulence heat transfer device 24 are spaced apart along the third direction, and a tube side turbulence heat transfer device 25 is provided on one side of the tube hole 22; the heat exchange tube 11 passes through the tube hole 22.
[0057] As an example, the heat transfer fin 2 includes a substrate 21; the substrate 21 is provided with a plurality of uniformly distributed tube holes 22 for the heat exchange tube 11 to pass through; in a second direction, a wind duct 23 and a tube hole turbulence heat transfer device 24 are provided between two adjacent tube holes; the wind duct 23 and the tube hole turbulence heat transfer device 24 are spaced apart along a third direction, and a tube side turbulence heat transfer device 25 is provided on one side of the tube hole 22; the heat exchange tube 11 passes through the tube hole 22; in this arrangement, the wind duct 23, the tube hole turbulence heat transfer device 24 and the tube side turbulence heat transfer device 25 are all used to enhance airflow turbulence and reduce the wake region to improve the efficiency of the finned heat exchanger, so that the heat transfer fin 2 can achieve efficient heat exchange and give full play to the efficient heat transfer characteristics of the multi-channel heat exchange tube.
[0058] The air duct 23 includes air holes disposed on the substrate 21 and baffles disposed around the air holes. The side with the baffles is the air inlet of the air duct 23. The baffles can be perpendicular to the substrate 21 or inclined towards one side of the substrate 21 to enlarge the air inlet. Adjacent baffles are sealed together. An inclined windward baffle is disposed between the baffle and the substrate 21 on the side of the air duct 23 near the pipe hole turbulence heat transfer device 24. Different inclination angles of the windward baffle result in different airflow resistances. Part of the air blowing towards the air inlet of the air duct 23 enters the air duct 23, and part enters the pipe hole turbulence heat transfer device 24 along the windward baffle.
[0059] In one embodiment, reference is made to Figure 5 The orifice 22 includes 2N first orifices 221, where N ≥ 1, and the 2N first orifices 221 are arranged in a rectangular shape; the diameter of each first orifice 221 is 6 to 50 mm.
[0060] In the bidirectional / third-directional direction, the distance between the centers of two adjacent first holes 221 is 16-80 mm.
[0061] As an example, refer to Figure 5 The first structure of the heat transfer fin 2 is introduced. The tube hole 22 includes 2N first tube holes 221, where N≥1. The 2N first tube holes 221 are arranged in a rectangular shape. The design size is that the diameter R of each first tube hole 221 is 6~50mm. In the bidirectional / third-directional direction, the distance L1 between the centers of two adjacent first tube holes 221 is 16~80mm, so that the heat transfer fin 2 forms a rectangular shape. Figure 5The shown bucket-shaped rectangular arrangement of flat fins increases the contact area between the heat exchange tube 11 and the heat transfer fins 2, thereby improving the heat transfer efficiency of the heat transfer fins 2. In this example, the tube holes 22 on the horizontal plane of the heat transfer fins 2 are arranged in a rectangular pattern. The diameter of each tube hole 22, R, is 6–50 mm. In the horizontal direction, the distance L1 between the centers of two tube holes 22 is 16–80 mm. In the vertical direction, the distance L1 between the centers of two tube holes 22 is 16–80 mm. The heat transfer fins 2 are bucket-shaped rectangular arrangement of flat fins.
[0062] In one embodiment, reference is made to Figure 6 The pipe hole 22 also includes N second pipe holes 222, where N ≥ 1. The N second pipe holes 222 are arranged in a rectangular shape and are staggered from the first pipe hole 221. Two adjacent first pipe holes 221 and an adjacent second pipe hole 222 are matched in a triangular arrangement. The diameter of each second pipe hole 222 is 6 to 50 mm. In the bidirectional / third-directional direction, the distance between the center of the adjacent first pipe hole 221 and the center of the second pipe hole 222 is 13 to 50 mm.
[0063] As an example, refer to Figure 6 The second structure of the heat transfer fin 2 is introduced. The tube hole 22 further includes N second tube holes 222, where N ≥ 1. The N second tube holes 222 are arranged in a rectangular pattern, and the second tube holes 222 are staggered with the first tube holes 221. Two adjacent first tube holes 221 and one adjacent second tube hole 222 are matched in a triangular pattern. The diameter R of each second tube hole 222 is 6–50 mm. In the bidirectional / tridirectional direction, the distance L2 between the center of an adjacent first tube hole 221 and the center of a second tube hole 222 is 13–50 mm, so that the heat transfer fin 2 forms a shape like... Figure 6 The shown triangularly arranged flat fins in a bucket shape can increase the contact area between the heat exchange tube 11 and the heat transfer fins 2, thereby improving the heat transfer efficiency of the heat transfer fins 2. In this example, the tube holes 22 on the horizontal plane of the heat transfer fins 2 are arranged in a triangular pattern. The diameter of each tube hole 22, R, is 6–50 mm. In the horizontal direction, the distance between the centers of two tube holes 22, L1, is 16–80 mm. In the vertical direction, the distance between the centers of two tube holes 22, L2, is 13–50 mm. The heat transfer fins 2 are triangularly arranged flat fins in a bucket shape.
[0064] In one embodiment, reference is made to Figure 4 , Figure 5 and Figure 6 The orifice 22 is set to any one of the following: circular, elliptical, and rectangular.
[0065] As an example, the orifice 22 can be selected according to the shape of the heat exchange tube 11, and can be set to any of the following: circular, elliptical, and rectangular, in order to meet the actual use requirements.
[0066] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.
Claims
1. A finned heat exchanger, characterized in that, Including heat transfer fins and heat exchange tube assemblies; The heat exchange tube assembly includes at least two heat exchange tubes and at least one transfer tube; at least one partition wall is provided inside the heat exchange tube to form at least two heat exchange channels inside the heat exchange tube; the heat exchange tube is used to pass through the heat transfer fins along a first direction; two adjacent heat exchange tubes are connected by the transfer tube, and at least two heat exchange tubes and at least one transfer tube cooperate to form a fluid pipeline, the two ends of the fluid pipeline being used to connect a liquid distribution pipe and a collection pipe, respectively; The heat transfer fins include a substrate; the substrate is provided with a plurality of uniformly distributed tube holes, and an air duct and a tube hole turbulence heat transfer device are provided between two adjacent tube holes; the air duct and the tube hole turbulence heat transfer device are arranged vertically at intervals, and a tube side turbulence heat transfer device is provided on one side of the tube hole; the heat exchange tube passes through the tube hole.
2. The finned heat exchanger according to claim 1, characterized in that, The partition wall includes a first partition wall disposed along a second direction and / or a second partition wall disposed along a third direction.
3. The finned heat exchanger according to claim 1, characterized in that, The heat exchange tube is a metal tube.
4. The finned heat exchanger according to claim 1, characterized in that, The finned heat exchanger also includes a liquid distribution pipe and a collection pipe; At least two of the heat exchange tubes are spaced apart within the heat transfer fins along a second direction / third direction; The separating tube and the collecting tube are respectively connected to both ends of the fluid pipeline.
5. The finned heat exchanger according to claim 1, characterized in that, The number of heat exchange tube assemblies is multiple, and the multiple heat exchange tube assemblies are spaced apart along a third direction / second direction.
6. The finned heat exchanger according to claim 1, characterized in that, The pipe hole includes 2N first pipe holes, where N≥1, and the 2N first pipe holes are distributed in a rectangular shape. The diameter of each of the first tube holes is 6 to 50 mm; In the bidirectional / third-directional direction, the distance between the centers of two adjacent first holes is 16-80 mm.
7. The finned heat exchanger according to claim 6, characterized in that, The pipe hole also includes N second pipe holes, where N ≥ 1, and the N second pipe holes are distributed in a rectangular shape, with the second pipe holes being staggered from the first pipe hole; Two adjacent first holes and one adjacent second hole are arranged in a triangular pattern. The diameter of each second tube hole is 6 to 50 mm; In the bidirectional / third-directional direction, the distance between the center of the first hole and the center of the second hole is 13-50 mm.
8. The finned heat exchanger according to claim 1, characterized in that, The tube hole is designed to be any one of circular, elliptical, or rectangular.