Heat exchange tube

Abstract

This application provides a heat exchange tube, which includes a textured tube and heat exchange fins. The heat exchange fins are connected to the textured tube and distributed on the outer periphery of the textured tube. The peripheral wall of the textured tube is provided with a plurality of first recesses, which can be used to collect external moisture. The heat exchange fins are spirally arranged along the textured tube and wound around the textured tube. The surface of the heat exchange fins is provided with a plurality of second recesses, which can be used to collect external moisture. The heat exchange fins are formed by pressing metal strip, and a plurality of second recesses are formed during the pressing process. The peripheral wall of the second recess is arranged at an angle, which guides external moisture to be collected in the internal space of the second recess, so that a water film is laid in the second recess, so that moisture can stay on the surface of the heat exchange fins through the space of the second recess, thereby avoiding the inability of moisture to stay on the surface of the heat exchange fins, enhancing the heat exchange capacity, and improving the heat exchange effect of the heat exchange tube.

Description

Technical Field

[0001] This utility model relates to the technical field of heat exchange tubes, and in particular to a heat exchange tube. Background Technology

[0002] With the development of technology, various heat exchangers are widely used in the industrial field. Heat exchangers typically facilitate the heat transfer between two or more substances, and heat exchange tubes are a common component of heat exchangers. In existing technology, existing heat exchange tubes consist of a cylindrical tube and fins, with the fins connected to the cylindrical tube. Both the surface of the cylindrical tube and the surface of the fins are smooth, allowing external moisture to slide down along the cylindrical tube and fins. The moisture cannot remain on the heat exchange fins, resulting in poor heat exchange performance of existing heat exchange tubes. Utility Model Content

[0003] The purpose of this invention is to provide a heat exchange tube in which heat exchange fins are connected to a textured tube and distributed on the outer periphery of the textured tube. The peripheral wall of the textured tube has multiple first recesses for collecting external moisture. The heat exchange fins are spirally arranged along the textured tube and wound around it. The surface of the heat exchange fins has multiple second recesses for collecting external moisture. The heat exchange fins are formed by pressing metal strips, and multiple second recesses are formed during the pressing process. The peripheral wall of the second recesses is arranged at an angle, guiding external moisture into the internal space of the second recesses, thus creating a water film in the second recesses. This allows moisture to remain on the surface of the heat exchange fins through the space of the second recesses, preventing moisture from failing to remain on the surface of the heat exchange fins, enhancing heat exchange capacity, and improving the heat exchange effect of the textured tube.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a heat exchange tube, comprising a textured tube and heat exchange fins; the heat exchange fins are connected to the textured tube and distributed on the outer periphery of the textured tube;

[0005] The periphery of the roughened tube is provided with a plurality of first recesses, which can be used to collect external moisture.

[0006] The heat exchange fins are spirally arranged along the textured tube and wound around the textured tube; the surface of the heat exchange fins is provided with a plurality of second recesses, which can be used to collect external moisture; the heat exchange fins are formed by pressing metal strips and forming a plurality of second recesses during the pressing process; the peripheral sidewalls of the second recesses are arranged at an angle and guide external moisture to be collected in the internal space of the second recesses, so that the second recesses are covered with a water film.

[0007] Optionally, a plurality of the second recesses are arranged in an array on the surface of the heat exchange fins and are arranged adjacent to each other;

[0008] The second recessed portion is provided with a first inclined surface, a second inclined surface, and an inner wall of the groove. The first inclined surface and the second inclined surface are respectively connected to the two ends of the inner wall of the groove and extend upward at an inclination.

[0009] Optionally, the first inclined surface and the second inclined surface are arranged at acute angles relative to the inner wall of the groove, and guide water to slide down to the inner wall of the groove; the inner wall of the groove is arranged in an arc shape, and collects external water.

[0010] Optionally, the sidewalls of the heat exchange fins are welded to the peripheral sidewalls of the textured tube, and the heat exchange fins are gradually welded during the winding process of the textured tube, so that the textured tube and the heat exchange fins are an integral structure.

[0011] Optionally, the textured tube has an inner cavity for the object to be cooled to pass through. Heat exchange occurs between the textured tube and the heat exchange fins. The textured tube conducts the heat of the object to be cooled to the heat exchange fins, so that the textured tube and the heat exchange fins perform combined heat dissipation and dissipate heat in different directions.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model provides a heat exchange tube, in which heat exchange fins are connected to a textured tube and distributed on the outer periphery of the textured tube; the peripheral wall of the textured tube is provided with a plurality of first recesses, which can be used to collect external moisture; the heat exchange fins are spirally arranged along the textured tube and wound around the textured tube; the surface of the heat exchange fins is provided with a plurality of second recesses, which can be used to collect external moisture; the heat exchange fins are formed by pressing metal strip, and a plurality of second recesses are formed during the pressing process; the peripheral wall of the second recess is arranged at an angle, and guides external moisture to be collected in the internal space of the second recess, so that a water film is laid in the second recess, so that moisture can stay on the surface of the heat exchange fins through the space of the second recess, thus avoiding the inability of moisture to stay on the surface of the heat exchange fins, enhancing the heat exchange capacity, and improving the heat exchange effect of the heat exchange tube. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0016] Figure 1 A schematic diagram of a heat exchange tube according to an embodiment of this application is shown.

[0017] Figure 2 A schematic diagram of the second recess of a heat exchange tube according to an embodiment of this application is shown.

[0018] Figure label:

[0019] 100. Rough-textured tube;

[0020] 10. Rough-textured tube; 10a. Inner cavity; 11. First recessed portion;

[0021] 20. Heat exchange fins; 21. Second recess; 211. First inclined surface; 212. Second inclined surface; 213. Groove. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] Please refer to the attached document. Figures 1-2 This application provides a heat exchange tube 100, which is applied to a heat exchanger and is used to exchange heat with an object to be cooled.

[0024] Please refer to the attached document. Figures 1-2 In this embodiment, the heat exchange tube 100 includes a textured tube 10 and heat exchange fins 20; the heat exchange fins 20 are connected to the textured tube 10 and distributed on the outer periphery of the textured tube 10; the peripheral wall of the textured tube 10 is provided with a plurality of first recesses 11, which can be used to collect external moisture; so that moisture can remain on the surface of the textured tube 10 through the first recesses 11, thereby enhancing the heat exchange capacity of the textured tube 10.

[0025] The heat exchange fins 20 are spirally arranged along the textured tube 10 and wound around the textured tube 10; the surface of the heat exchange fins 20 is provided with a plurality of second recesses 21, which can be used to collect external moisture; the heat exchange fins 20 are formed by pressing metal strip and forming a plurality of second recesses 21 during the pressing process; the peripheral sidewalls of the second recesses 21 are arranged with an inclined surface and guide external moisture to be collected in the internal space of the second recesses 21, so that the second recesses 21 are covered with a water film, so that the moisture can stay on the surface of the heat exchange fins 20 through the space of the second recesses 21, avoiding the inability of moisture to stay on the surface of the heat exchange fins 20, enhancing the heat exchange capacity and improving the heat exchange effect of the heat exchange tube 100.

[0026] Please refer to the attached document. Figures 1-2 In this embodiment, a plurality of second recesses 21 are arrayed on the surface of the heat exchange fins 20 and arranged adjacent to each other; this increases the heat exchange area of ​​the heat exchange fins 20 and improves the heat transfer efficiency of the heat exchange fins 20. Each second recess 21 has a first inclined surface 211, a second inclined surface 212, and an inner wall of a groove 213. The first inclined surface 211 and the second inclined surface 212 are respectively connected to the two ends of the inner wall of the groove 213 and extend upwards at an angle. The first inclined surface 211, the second inclined surface 212, and the inner wall of the groove 213 are connected to form a stable triangular structure. This triangular structure has excellent stability, allowing the heat exchange fins 20 to withstand greater pressure without easily deforming, and also guiding moisture to collect at the bottom.

[0027] Please refer to the attached document. Figures 1-2 In this embodiment, the first inclined surface 211 and the second inclined surface 212 are arranged at an acute angle relative to the inner wall of the groove 213, and guide water to slide down to the inner wall of the groove 213. This allows water to slide smoothly down along the inclined direction when it comes into contact with the first inclined surface 211 and the second inclined surface 212, reducing the time water stays on the first inclined surface 211 and the second inclined surface 212 and preventing water from forming a large area of ​​liquid accumulation on the first inclined surface 211 and the second inclined surface 212. The inner wall of the groove 213 is arranged in an arc shape and collects external water, so that the inner wall of the groove 213 can concentrate the water together.

[0028] Please refer to the attached document. Figures 1-2 In this embodiment, the sidewall of the heat exchange fin 20 is welded to the peripheral sidewall of the textured tube 10. The heat exchange fin 20 is gradually welded during the winding process of the textured tube 10, so that the textured tube 10 and the heat exchange fin 20 form an integral structure, which improves the connection strength between the textured tube 10 and the heat exchange fin 20, ensures the connection stability between the textured tube 10 and the heat exchange fin 20, and avoids the textured tube 10 and the heat exchange fin 20 from easily detaching during use.

[0029] Please refer to the attached document. Figures 1-2 In this embodiment, the textured tube 10 is provided with an inner cavity 10a, which serves as the internal space of the textured tube 10. The inner cavity 10a is used for the object to be cooled to pass through, so that the textured tube 10 can accommodate the object to be cooled through the inner cavity 10a. Heat exchange occurs between the textured tube 10 and the heat exchange fins 20. The textured tube 10 conducts the heat of the object to be cooled and conducts it to the heat exchange fins 20, so that the textured tube 10 and the heat exchange fins 20 can perform combined heat dissipation and heat dissipation in different directions, which ensures the heat dissipation effect of the object to be cooled and improves the heat dissipation efficiency of the object to be cooled.

[0030] After producing the textured tube of this invention, its two ends are threaded onto an orifice plate, forming a manifold at both ends of the orifice plate. Due to the hydrophilicity of the heat exchange fins 20 and the entire outer surface of the textured tube, a water film can adhere to the surface, facilitating evaporative heat dissipation. Each group uses 1008 textured tubes, achieving an internal surface area of ​​93 m², while the external effective heat exchange area reaches 860 m² due to the fins and texture, more than doubling the heat exchange area compared to ordinary fins. In steam condensation applications, steam is introduced from inside the tube, generating high heat transfer power. Cooling and heat dissipation are achieved outside the tube through the large surface area and the evaporation of the water film, supporting continuous condensation of steam inside the tube.

[0031] Compared with the prior art, the beneficial effects of this utility model are:

[0032] This utility model provides a heat exchange tube 100 and its manufacturing process. Heat exchange fins 20 are connected to a textured tube 10 and distributed on the outer periphery of the textured tube 10. The peripheral wall of the textured tube 10 is provided with a plurality of first recesses 11, which can be used to collect external moisture. The heat exchange fins 20 are spirally arranged along the textured tube 10 and wound around the textured tube 10. The surface of the heat exchange fins 20 is provided with a plurality of second recesses 21, which can be used to collect external moisture. The heat exchange fins 20 are formed by pressing metal strip and forming a plurality of second recesses 21 during the pressing process. The peripheral wall of the second recesses 21 is arranged at an angle and guides external moisture to be collected in the internal space of the second recesses 21, so that the second recesses 21 are covered with a water film, so that the moisture can stay on the surface of the heat exchange fins 20 through the space of the second recesses 21, avoiding the inability of moisture to stay on the surface of the heat exchange fins 20, enhancing the heat exchange capacity, and improving the heat exchange effect of the heat exchange tube 100.

[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0034] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0035] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0036] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A heat exchange tube, characterized in that, It includes a textured tube and heat exchange fins; the heat exchange fins are connected to the textured tube and distributed on the outer periphery of the textured tube; The periphery of the roughened tube is provided with a plurality of first recesses, which can be used to collect external moisture. The heat exchange fins are spirally arranged along the textured tube and wound around the textured tube; the surface of the heat exchange fins is provided with a plurality of second recesses, which can be used to collect external moisture; the heat exchange fins are formed by pressing metal strips and forming a plurality of second recesses during the pressing process; the peripheral sidewalls of the second recesses are arranged at an angle and guide external moisture to be collected in the internal space of the second recesses, so that the second recesses are covered with a water film.

2. The heat exchange tube according to claim 1, characterized in that, Multiple second recesses are arranged in an array on the surface of the heat exchange fins and are arranged adjacent to each other; The second recessed portion is provided with a first inclined surface, a second inclined surface, and an inner wall of the groove. The first inclined surface and the second inclined surface are respectively connected to the two ends of the inner wall of the groove and extend upward at an inclination.

3. The heat exchange tube according to claim 2, characterized in that, The first and second inclined surfaces are arranged at acute angles relative to the inner wall of the groove, guiding water to slide down to the inner wall of the groove; the inner wall of the groove is arranged in an arc shape, accommodating external water.

4. The heat exchange tube according to claim 1, characterized in that, The sidewalls of the heat exchange fins are welded to the peripheral sidewalls of the textured tube. The heat exchange fins are gradually welded during the winding process of the textured tube, so that the textured tube and the heat exchange fins form an integral structure.

5. The heat exchange tube according to claim 4, characterized in that, The textured tube has an inner cavity for the object to be cooled to pass through. Heat exchange occurs between the textured tube and the heat exchange fins. The textured tube conducts the heat of the object to be cooled to the heat exchange fins, so that the textured tube and the heat exchange fins can perform combined heat dissipation and dissipate heat in different directions.

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