Seamless steel tube for agricultural greenhouse radiator

Abstract

The utility model discloses a seamless steel tube for an agricultural greenhouse radiator, which comprises a steel tube main body, the left end of the steel tube main body is connected with an inlet joint, the right end of the steel tube main body is connected with an outlet joint, the outer side of the steel tube main body is connected with not less than five first fins which are distributed at equal intervals, and the interval between every two first fins is not less than 3cm. At least five second fins which are distributed at equal intervals are connected to the right sides of the first fins and the outer side of the steel pipe body, the distance between every two second fins is not smaller than 3 cm, at least five third fins which are distributed at equal intervals are connected to the right sides of the second fins and the outer side of the steel pipe body, and the distance between every two third fins is not smaller than 3 cm. According to the utility model, the heat dissipation area of the annular fins is increased, the heat dissipation effect is improved, the air flow around the tube body is accelerated, and the heat dissipation effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seamless steel pipes, in particular to a seamless steel pipe used for agricultural greenhouse radiators. Background Art

[0002] Agricultural greenhouse radiators are mostly fin tube radiators. Fin tube radiators use fin seamless tubes. The types of fin seamless tubes include annular fin seamless tubes, spiral fin seamless tubes, and toothed fin seamless tubes. Among them, annular fin seamless tubes and spiral fin seamless tubes are the most widely used and most common.

[0003] The outer diameter of the annular fin seamless tube is limited due to the limitation of the radiator's external dimensions. The heat dissipation performance of the annular fin seamless tube is directly related to the outer diameter difference between the annular fin and the seamless steel tube. The greater the diameter difference, the larger the area of ​​the annular fin exposed to the air for heat dissipation. However, due to the limitation of volume and radiator size, the outer diameter of the annular fin is limited. At the same time, the conventional heat dissipation method of the annular fin seamless tube is to dissipate heat naturally and disorderly, and the heat dissipation effect is average.

[0004] Therefore, designing a steel pipe that increases the heat dissipation area of ​​the annular fins, accelerates the air flow around the pipe body, and improves the heat dissipation effect is exactly the problem that the inventor wants to solve. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a seamless steel pipe for agricultural greenhouse radiators, which can increase the heat dissipation area of ​​the annular fins, accelerate the air flow around the pipe body, and improve the heat dissipation effect.

[0006] The technical solution adopted by the utility model device is: a seamless steel pipe for agricultural greenhouse radiator, which includes a steel pipe main body, the left end of the steel pipe main body is connected to an inlet joint, the right end of the steel pipe main body is connected to an outlet joint, the outer side of the steel pipe main body is connected to no less than five first fins distributed at equal intervals and the spacing between them is not less than 3 cm, the right side of the first fin and the outer side of the steel pipe main body are connected to no less than five second fins distributed at equal intervals and the spacing between them is not less than 3 cm, the right side of the second fin and the outer side of the steel pipe main body are connected to no less than five third fins distributed at equal intervals and the spacing between them is not less than 3 cm, the first fin, the second fin, and the third fin have the same outer diameter size and the same number.

[0007] Furthermore, the first fin comprises a cylinder, the outer side of the cylinder is connected with an edge flange, and the edge flange and the cylinder are provided with six first air ducts evenly distributed circumferentially.

[0008] Furthermore, the cylinder member comprises a bottom plate, the edge of the bottom plate is connected with a cylindrical side wall perpendicular to the bottom plate, and the end of the cylindrical side wall is connected to an edge flange.

[0009] Furthermore, the second fin comprises a connecting flange, and the connecting flange is connected to a conical surface structure on an additional side thereof, and six second air ducts evenly distributed in a circumference are formed on the conical surface structure and the connecting flange.

[0010] Furthermore, the angle between the cross section of the conical structure and the vertical direction is 30°.

[0011] Furthermore, six third air ducts evenly distributed circumferentially are provided on the end surface of the third fin.

[0012] Furthermore, the width of the first air duct is the same as the width of the second air duct, the width of the second air duct is the same as the width of the third air duct, and the depths of the first air duct, the second air duct, and the third air duct in the vertical direction are the same.

[0013] Furthermore, the width of the side wall of the cylinder is not less than 1.5 cm.

[0014] The beneficial effects of the utility model device are:

[0015] 1. The utility model adopts a special-shaped fin structure, and designs the original unified annular flange structure into a structure with bends and slopes, thereby increasing the heat dissipation area of ​​the annular fin and improving the heat dissipation effect.

[0016] 2. The utility model sets up the air duct, cooperates with the gradual reduction of the heat dissipation area from left to right, creates a temperature difference at both ends of the pipeline, accelerates the flow of air on the pipeline surface, and realizes the function of accelerating the air flow around the pipe body to further improve the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural view of the utility model.

[0018] Figure 2 It is a cross-sectional view of the utility model.

[0019] Figure 3 This is a view of the first fin structure of the utility model.

[0020] Figure 4 This is a view of the second fin structure of the utility model.

[0021] Figure 5 This is a third fin structure view of the utility model.

[0022] Explanation of the reference numerals: 1-inlet joint; 2-steel pipe body; 3-first fin; 4-second fin; 5-third fin; 6-outlet joint; 7-edge flange; 8-cylinder; 9-first air duct; 10-conical structure; 11-connecting flange; 12-second air duct; 13-third air duct. DETAILED DESCRIPTION

[0023] The following is a further description of the present invention in conjunction with specific embodiments. These embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to the application.

[0024] See also Figures 1 to 5 The utility model is a seamless steel pipe for agricultural greenhouse radiator, which includes a steel pipe main body 2, the left end of the steel pipe main body 2 is connected with an inlet joint 1, and the right end of the steel pipe main body 2 is connected with an outlet joint 6, the outlet joint 6 and the inlet joint 1 are used to connect the radiator main body, the outer side of the steel pipe main body 2 is connected with no less than five first fins 3 distributed at equal intervals and the spacing between each other is not less than 3 cm, the first fin 3 includes a cylinder 8, the outer side of the cylinder 8 is connected with an edge flange 7, six first air ducts 9 evenly distributed in a circular pattern are opened on the edge flange 7 and the cylinder 8, the width of the cylindrical side wall is not less than 1.5 cm, the edge flange 7 and the cylinder 8 do not contact each other between adjacent fins, ensuring that a gap is left between the first fins 3 for ventilation, the cylindrical side wall structure on the cylinder increases the contact area between the fins and the air under the same outer diameter, further increases the heat dissipation area and the heat dissipation effect, and the first air duct 9 is used for air circulation between the fins.

[0025] At least five equally spaced second fins 4 are connected to the right side of the first fin 3 and the outer side of the steel tube body 2, and the spacing between them is not less than 3 cm. The second fin 4 includes a connecting flange 11, and a conical structure 10 is connected to the outer side thereof. Six evenly circumferentially distributed second air ducts 12 are provided on the conical structure 10 and the connecting flange 11. The function of the conical structure 10 is the same as that of the side wall of the cylinder, which is to increase the contact area between the fins and the air. The second air duct 12 is used for air circulation between the fins.

[0026] At least five evenly spaced third fins 5 are connected to the right side of the second fin 4 and the outer side of the steel tube body 2, and the spacing between them is not less than 3 cm. Six evenly circumferentially distributed third air ducts 13 are opened on the end face of the third fin 5. The structure of the third fin 5 is an ordinary annular flange. The third air duct 13 is used for air circulation between the fins.

[0027] The first fin 3 , the second fin 4 , and the third fin 5 have the same outer diameter and the same number.

[0028] By designing the right-angle bending structure of the first fin 3, the conical structure 10 of the second fin 4 and the ordinary annular flange structure of the third fin 5, an environment that can produce a temperature difference is artificially set on the surface of the steel pipe body 2. The contact area between the first fin 3 and the air is larger than that between the second fin 4, and the contact area between the second fin 4 and the air is larger than that between the third fin 5. The left end is the inlet and the right end is the outlet. This causes the temperature of the left end near the surface of the steel pipe body 2 to be greater than that of the right end. The temperature difference is one of the factors affecting the flow of air. The air near the surface of the steel pipe body 2 has a temperature difference, so airflow will be generated to accelerate the flow of air. The positions of the first air duct 9, the second air duct 12, and the third air duct 13 are relative. The flowing air can flow to the right through the first air duct 9 and enter the area of ​​the second fin 4, and then continue to flow to the right through the second air duct 12 to enter the area of ​​the third fin 5, and finally leave the fin area from the third air duct 13. In this process, the hot air around the steel pipe body 2 will be driven to flow, thereby accelerating the heat dissipation.

[0029] The cylinder member 8 comprises a bottom plate, the edge of which is connected with a cylindrical side wall perpendicular to the bottom plate, and the end of the cylindrical side wall is connected with an edge flange 7 .

[0030] The angle between the cross section of the conical structure 10 and the vertical direction is 30°.

[0031] The width of the first air duct 9 is the same as that of the second air duct 12 , the width of the second air duct 12 is the same as that of the third air duct 13 , and the depths of the first air duct 9 , the second air duct 12 , and the third air duct 13 in the vertical direction are the same.

[0032] The utility model adopts a special-shaped fin structure and designs the original unified circular flange structure into a structure with bends and slopes, thereby increasing the heat dissipation area of ​​the annular fin and improving the heat dissipation effect. By setting an air duct and gradually reducing the heat dissipation area from left to right, a temperature difference is created at both ends of the pipeline, accelerating the flow of air on the surface of the pipeline, and accelerating the air flow around the pipe body to further improve the heat dissipation effect.

Claims

1. A seamless steel pipe for agricultural greenhouse radiator, characterized by: The invention comprises a steel pipe body (2), wherein the left end of the steel pipe body (2) is connected to an inlet joint (1), the right end of the steel pipe body (2) is connected to an outlet joint (6), the outer side of the steel pipe body (2) is connected to at least five first fins (3) distributed at equal intervals and the spacing between them is not less than 3 cm, the right side of the first fin (3) and the outer side of the steel pipe body (2) are connected to at least five second fins (4) distributed at equal intervals and the spacing between them is not less than 3 cm, the right side of the second fin (4) and the outer side of the steel pipe body (2) are connected to at least five third fins (5) distributed at equal intervals and the spacing between them is not less than 3 cm, and the first fin (3), the second fin (4) and the third fin (5) have the same outer diameter and the same number.

2. The seamless steel pipe for agricultural greenhouse radiator according to claim 1 is characterized in that: The first fin (3) comprises a cylinder (8), the outer side of the cylinder (8) is connected to an edge flange (7), and six first air ducts (9) evenly distributed circumferentially are provided on the edge flange (7) and the cylinder (8).

3. The seamless steel pipe for agricultural greenhouse radiator according to claim 2 is characterized in that: The cylinder (8) comprises a bottom plate, the edge of which is connected to a cylindrical side wall perpendicular to the bottom plate, and the end of the cylindrical side wall is connected to an edge flange (7).

4. The seamless steel pipe for agricultural greenhouse radiator according to claim 1, characterized in that: The second fin (4) comprises a connecting flange (11), the connecting flange being connected to a conical surface structure (10) on one side thereof, and the conical surface structure (10) and the connecting flange (11) being provided with six second air ducts (12) evenly distributed around the circumference.

5. The seamless steel pipe for agricultural greenhouse radiator according to claim 4 is characterized in that: The angle between the cross section of the conical surface structure (10) and the vertical direction is 30°.

6. The seamless steel pipe for agricultural greenhouse radiator according to claim 1, characterized in that: Six third air ducts (13) evenly distributed around the circumference are provided on the end surface of the third fin (5).

7. The seamless steel pipe for agricultural greenhouse radiator according to claim 2, characterized in that: The width of the first air duct (9) is the same as the width of the second air duct (12), the width of the second air duct (12) is the same as the width of the third air duct (13), and the first air duct (9), the second air duct (12), and the third air duct (13) have the same depth in the vertical direction.

8. The seamless steel pipe for agricultural greenhouse radiator according to claim 3 is characterized by: The width of the cylindrical side wall is not less than 1.5 cm.

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