Porous radiating tube for agricultural machine radiator

Abstract

A porous radiating pipe for a radiator of an agricultural machine comprises a plurality of tubular parts which are connected with one another, each tubular part is provided with a hollow inner cavity, and the hollow inner cavities are in a long strip shape; the adjacent tubular parts are connected end to end through two opposite arc-shaped connecting parts to form a continuous longitudinal extending structure, the arc-shaped connecting parts and the tubular parts are integrally formed, and the two opposite arc-shaped connecting parts are fixedly connected; the end, away from the arc-shaped connecting part, of the tubular part at the head end is a bending forming part, the end, away from the arc-shaped connecting part, of the tubular part at the tail end is an opening part, and the opening part is fixed through welding. The air heat resistance of the middle portion after the multiple calandria pipes are assembled in the prior art is effectively reduced, the heat dissipation performance is improved due to the fact that the porous efficient pipes are free of air heat resistance, and compared with an existing mode that the multiple calandria pipes are sequentially assembled, the core assembling difficulty is greatly reduced, and efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery radiator technology, specifically a porous heat dissipation pipe for agricultural machinery radiators. Background Technology

[0002] Because of the low internal airflow velocity and the low speed of the tractor, the radiator core of agricultural machinery tractors has to be made very thick to increase the radiator's cooling capacity. Since the working environment of tractors is extremely harsh, the cooling pipes cannot be made very wide; excessively wide pipes would significantly reduce their vibration resistance and burst pressure. The more commonly used long, narrow strip-shaped cooling pipes typically require several rows to achieve the desired cooling performance during assembly. The gaps between the pipes allow air to be drawn in, causing air turbulence and reducing cooling capacity. The large number of rows also leads to assembly difficulties and low efficiency. Utility Model Content

[0003] To address the technical problems mentioned above, this utility model provides a porous heat dissipation pipe for agricultural machinery radiators.

[0004] The technical solution of this utility model is as follows:

[0005] A porous heat dissipation pipe for agricultural machinery radiators includes multiple interconnected tubular sections, each of which has a hollow inner cavity, and the hollow inner cavity is elongated.

[0006] Adjacent tubular sections are connected end to end by two opposing arc-shaped connecting parts to form a continuous longitudinal extension structure. The arc-shaped connecting parts are integrally formed with the tubular sections, and the two opposing arc-shaped connecting parts are fixedly connected.

[0007] The end of the tubular part at the beginning, away from the arc-shaped connecting part, is a bent and shaped part, and the end of the tubular part at the end, away from the arc-shaped connecting part, is an open part, which is fixed by welding.

[0008] To improve heat dissipation and vibration resistance, the overall height of the multiple tubular sections and arc-shaped connecting parts is 55mm-65mm, and there are 3-5 tubular sections connected to each other in sequence.

[0009] To ensure a large heat dissipation space inside the tubular section and a smooth connection between the tubular section and the arc-shaped connecting section, the arc-shaped connecting section includes a first arc-shaped section whose two ends are connected to the tubular section and whose center is located on one side of the hollow inner cavity. A second arc-shaped section is provided between the first arc-shaped sections and whose center is located on the outside of the hollow inner cavity.

[0010] The dimensions of the first arc-shaped part and the second arc-shaped part are designed such that the radius of the circle containing the first arc-shaped part is 0.9mm-1.2mm, and the radius of the circle containing the second arc-shaped part is 0.4mm-0.6mm.

[0011] To ensure the dimensions of the tubular inner cavity, the cross-sectional shape of the bending forming part is semi-circular, and its inner diameter is 0.8mm-0.95mm.

[0012] To increase the impact points of the water flow and create turbulence to enhance heat dissipation, multiple sets of first convex bulges are formed on the tubular portions on both sides of the hollow inner cavity, and are spaced apart along the length of the tubular portions.

[0013] In order to increase the area of ​​water flow obstruction, multiple sets of first protrusions are arranged in parallel, and the first protrusions in each set are arranged in a stepped manner along the height direction of the tubular part. The first protrusions on both sides of the hollow inner cavity are staggered in the vertical direction.

[0014] To further enhance the water flow blocking effect, second protrusions are fixed between adjacent sets of first protrusions and on the tubular portions outside the first protrusions at both ends.

[0015] In order to disrupt the flow of water and improve the heat dissipation effect, the first convex bulge is set vertically along the height direction of the tubular part, and the second convex bulge is set at an angle, with an angle of inclination of not less than 15° relative to the horizontal direction.

[0016] In order to guide the water flow after blocking it, the cross-sectional shape of the first convex hull and the second convex hull is trapezoidal, and the acute angle between the hypotenuse of the trapezoid and the plane where the convex hull is located is not less than 35°.

[0017] The beneficial effects of this utility model are as follows: This utility model is a porous heat dissipation pipe for agricultural machinery radiators. Unlike existing heat dissipation pipes, the heat dissipation pipe of this solution is integrally molded, and the heat dissipation pipe is divided into multiple heat dissipation channels by the arc-shaped connecting part formed by the pressing ribs. On the one hand, it effectively reduces the air thermal resistance in the middle part after the assembly of multiple pipes in the prior art. The absence of air thermal resistance in the porous high-efficiency pipe improves the heat dissipation performance. On the other hand, compared with the existing method of assembling multiple pipes in sequence, the difficulty of assembling the core is greatly reduced and the efficiency is greatly improved. Secondly, by setting multiple sets of first and second convex bulges in the tubular part to form impact points, the water flow is dispersed and gathered multiple times during the flow of water in the tubular part, which improves the fluidity of the water and enhances the heat dissipation performance. Attached Figure Description

[0018] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0019] In the attached diagram:

[0020] Figure 1 This is a schematic diagram of the overall structure of the heat pipe;

[0021] Figure 2 This is a side view of the heat pipe;

[0022] Figure 3 This is a cross-sectional view along direction A;

[0023] Figure 4 This is a magnified view of point A;

[0024] Figure 5 This is a cross-sectional view along direction B;

[0025] Figure 6 This is a partial view of the section along direction B;

[0026] Figure 7 This is a magnified view of point B;

[0027] Figure 8 This is a magnified view of point C;

[0028] The components represented by the various reference numerals in the diagram are:

[0029] 1. Tubular part; 2. Hollow inner cavity; 3. Arc-shaped connecting part; 31. First arc-shaped part; 32. Second arc-shaped part; 4. Bending and forming part; 5. Opening part; 6. First convex hull; 7. Second convex hull. Detailed Implementation

[0030] Exemplary embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings.

[0031] Example

[0032] As mentioned in the background section, the heat dissipation pipes in existing agricultural machinery radiators are usually arranged in small sizes. The multiple arranged and spaced installation method results in large gaps between the pipes, causing air to circulate and reducing heat dissipation performance. Furthermore, due to the large number of heat dissipation pipes, the installation requires a lot of time and effort. Therefore, the inventor has improved upon the existing heat dissipation pipes and designed a new type of heat dissipation pipe suitable for agricultural machinery radiators. The following is a detailed explanation with reference to the illustrations.

[0033] This embodiment provides a porous heat dissipation pipe for agricultural machinery radiators. See [link / reference] Figures 1-8The system includes multiple interconnected tubular sections 1, each of which has a hollow inner cavity 2, and the hollow inner cavity 2 is elongated. In this design, the overall height of the multiple tubular sections 1 and the arc-shaped connecting part 3 is 55mm-65mm, which is the length along the extension direction of the multiple tubular sections 1. Moreover, there are 3-5 tubular sections 1 connected to each other in sequence. In this design, there are 4 tubular sections 1, and the wall thickness of the tubular section 1 is 0.35mm. The purpose is to reduce the size of the hollow inner cavity 2 and improve the vibration resistance and heat dissipation performance.

[0034] In this embodiment, adjacent tubular sections 1 are connected end-to-end by two opposing arc-shaped connecting parts 3. That is, the two side plates constituting the tubular section 1 are connected by the arc-shaped connecting parts 3, forming a continuous longitudinally extending structure. The arc-shaped connecting parts 3 are integrally formed with the tubular section 1. The arc-shaped connecting parts 3 are formed using a rib-pressing process. In this solution, combined with... Figure 2 and Figure 4 The arc-shaped connecting part 3 includes a first arc-shaped part 31 connected to the tubular part 1 at both ends, and its center is located on one side of the hollow inner cavity 2. That is, the connection position between the arc-shaped connecting part 3 and the tubular part 1 is set in the form of a rounded corner. In this solution, the radius of the circle where the first arc-shaped part 31 is located is 0.9mm-1.2mm to improve smoothness. A second arc-shaped part 32 is provided between the first arc-shaped parts 31, and its center is located on the outside of the hollow inner cavity 2. The radius of the circle where the second arc-shaped part 32 is located is 0.4mm-0.6mm.

[0035] Based on the above structure, the two opposing arc-shaped connecting parts 3 are fixedly connected, specifically by brazing. By fixing the two opposing arc-shaped connecting parts 3, the hollow inner cavity 2 is sealed, ensuring the independence of each hollow inner cavity 2 and preventing water flow. This achieves the same function as the independent heat dissipation pipe in the prior art. However, the gap between the arc-shaped connecting parts 3 and the independent heat dissipation pipe in this solution is greatly reduced, effectively reducing the air thermal resistance in the middle part of the heat dissipation pipe and improving the heat dissipation performance.

[0036] In addition, combined Figure 7 and Figure 8 The end of the tubular part 1 away from the arc-shaped connecting part 3 is a bent forming part 4. The cross-sectional shape of the bent forming part 4 is semi-circular, and its inner diameter is 0.8mm-0.95mm. This design ensures the smoothness of the tubular part 1 at the beginning, which is convenient for installation with the heat sink. It also ensures the space inside the tubular cavity. Moreover, due to the integral bending, the end of the tubular part 1 away from the arc-shaped connecting part 3 is an opening 5. The two sides of the opening 5 are set as arcs. The opening 5 is fixed by welding to seal the entire heat sink tube.

[0037] Based on the above structure, combined with Figure 1 and Figure 6 To improve heat dissipation by multiple diversions and convergences of the water flow within the heat dissipation pipes, this design incorporates the following: Multiple sets of first protrusions 6 are recessed into the tubular portions 1 on both sides of the hollow inner cavity 2, protruding towards the center of the hollow inner cavity 2 and spaced apart along the length of the tubular portion 1. In this design, the multiple sets of first protrusions 6 are arranged in parallel, with three in each set. Furthermore, each set of first protrusions 6 is arranged in a stepped pattern along the height of the tubular portion 1, with all steps at the same height. Figure 1 As shown, it should be noted that both the first convex hull 6 and the subsequent second convex hull 7 are located on the inner wall surface of the tubular portion 1. Figure 1 To facilitate the illustration of the different positions of the convex buds on both sides, solid lines and dashed lines are used for distinction. The solid convex buds are located on one of the inner walls, and the dashed convex buds are located on the opposite inner wall, so that water flow at different heights can be blocked. The first convex buds 6 on both sides of the hollow inner cavity 2 are staggered in the vertical direction. By staggering them in the vertical direction, the blocking area for water flow can be increased.

[0038] In addition, combined Figure 2 A second protrusion 7 is fixed between two adjacent sets of first protrusions 6 and on the tubular portion 1 outside the first protrusions 6 at both ends. The second protrusions 7 are partially arranged on the inner wall of the tubular portion 1 on both sides of the hollow inner cavity 2, and the second protrusions 7 located on different inner walls are arranged opposite each other, which can further improve the turbulence effect.

[0039] Based on the above structure, the front of both the first convex 6 and the second convex 7 is set in a waist shape. Moreover, the first convex 6 is set vertically along the height direction of the tubular part 1, and the second convex 7 is set at an inclination with an inclination angle of not less than 15° relative to the horizontal direction. The cross-sectional shape of the first convex 6 and the second convex 7 is trapezoidal, and the acute angle between the hypotenuse of the trapezoid and the plane where the convex 7 is located is not less than 35°. The inclination of the second convex 7 and the vertical setting of the first convex 6 can improve the irregularity of the water flow. Furthermore, by setting both of them in a waist shape, they can guide and converge the water after diversion, thereby accelerating the flow rate of the water. The multiple sets of first convex 6 and second convex 7 enable the water flow to be repeatedly diverted and converged, thereby improving the heat dissipation performance.

Claims

1. A porous heat dissipation tube for an agricultural machine heat sink, characterized by, It includes multiple interconnected tubular parts (1), each of which has a hollow inner cavity (2), and the hollow inner cavity (2) is elongated. Adjacent tubular sections (1) are connected end to end by two opposing arc-shaped connecting parts (3) to form a continuous longitudinal extension structure. The arc-shaped connecting parts (3) and the tubular sections (1) are integrally formed, and the two opposing arc-shaped connecting parts (3) are fixedly connected. The end of the tubular part (1) at the beginning is a bent part (4) away from the arc-shaped connecting part (3), and the end of the tubular part (1) at the end is an opening part (5) away from the arc-shaped connecting part (3), and the opening part (5) is fixed by welding.

2. The porous heat dissipation tube for agricultural machinery heat sink according to claim 1, characterized in that, The overall height of the multiple tubular parts (1) and the arc-shaped connecting parts (3) is 55mm-65mm, and there are 3-5 tubular parts (1) connected to each other in sequence.

3. The porous heat pipe for a radiator of an agricultural machine according to claim 1, wherein The arc-shaped connecting part (3) includes a first arc-shaped part (31) connected to the tubular part (1) at both ends, and its center is located on one side of the hollow inner cavity (2). A second arc-shaped part (32) is provided between the first arc-shaped parts (31), and its center is located outside the hollow inner cavity (2).

4. The porous heat pipe for a radiator of an agricultural machine according to claim 3, wherein The radius of the circle containing the first arc-shaped part (31) is 0.9mm-1.2mm, and the radius of the circle containing the second arc-shaped part (32) is 0.4mm-0.6mm.

5. The porous heat pipe for a radiator of an agricultural machine according to claim 1, wherein The cross-sectional shape of the bending forming part (4) is semi-circular, and its inner diameter is 0.8mm-0.95mm.

6. The porous heat pipe for a radiator of an agricultural machine according to claim 1, wherein Multiple sets of first protrusions (6) are formed on the tubular portions (1) on both sides of the hollow inner cavity (2), and are spaced apart along the length of the tubular portions (1).

7. The porous heat pipe for a radiator of an agricultural machine according to claim 6, wherein Multiple sets of first convex buds (6) are arranged in parallel, and each set of first convex buds (6) is arranged in a stepped manner along the height direction of the tubular part (1). The first convex buds (6) on both sides of the hollow inner cavity (2) are staggered in the vertical direction.

8. The porous heat pipe for a radiator of an agricultural machine according to claim 7, wherein A second convex hull (7) is fixedly attached to the tubular portion (1) on the outside of the first convex hull (6) at both ends and between the two adjacent sets of first convex hulls (6).

9. The porous heat pipe for a radiator of an agricultural machine according to claim 8, wherein The first convex hull (6) is vertically arranged along the height direction of the tubular part (1), and the second convex hull (7) is inclined, with an inclination angle of not less than 15° relative to the horizontal direction.

10. The porous heat pipe for a radiator of an agricultural machine according to claim 9, wherein The cross-sectional shape of the first convex hull (6) and the second convex hull (7) is trapezoidal, and the angle between the hypotenuse of the trapezoid and the acute angle of the plane containing the convex hull is not less than 35°.

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