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Rotary Fin Heat Exchange Tube

A technology of heat exchange tubes and fins, which is applied in the field of rotary fin heat exchange tubes, can solve the problems of inability to form effective heat dissipation and inability to make full use of the heat dissipation area of ​​the outer surface of aluminum tubes, so as to improve the heat dissipation effect and expand the heat dissipation area

Active Publication Date: 2014-10-15
ZHEJIANG KANGSHENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention also solves the defect that the existing spiral fins are upright structures and cannot make full use of the expanded heat dissipation area of ​​the aluminum tube, and provides a spiral fin heat exchange tube. Increased heat dissipation area, improved heat dissipation effect
[0007] The present invention also solves the defect that the existing spiral fins are wound along the outer circumference of the aluminum tube to form a closed inner cavity, which cannot form effective heat dissipation, and provides a spiral fin heat exchange tube. The outer side of the spiral fins is Corrugated, expands the heat dissipation area, does not form a closed inner cavity, and improves the heat dissipation effect

Method used

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  • Rotary Fin Heat Exchange Tube
  • Rotary Fin Heat Exchange Tube
  • Rotary Fin Heat Exchange Tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: a kind of rotary fin heat exchange tube (see attached figure 1 ), including an aluminum tube 1 with a channel 7 in the middle, and a spiral fin 2 is spirally wound on the outside of the aluminum tube.

[0030] Aluminum tube (see attached Figure 5 ) is a round tube, and a single channel 7 is arranged inside the aluminum tube. The outer diameter of the aluminum tube with this structure is 4-20 mm, and the wall thickness of the aluminum tube is 0.5-2 mm. The aluminum tube here has an outer diameter of 8 mm and a wall thickness of 1 mm. When the spiral fin is wound to the outside of the aluminum tube, the spiral fin is upright, and the pitch of the spiral winding is 5mm.

[0031] The spiral fins are strip-shaped structures of equal thickness (see attached figure 2 attached image 3 ). One side of the spiral fin is a straight edge, and the other side of the spiral fin is a wave edge, and the straight edge is close to the surface of the aluminum tube. Th...

Embodiment 2

[0032] Embodiment 2: a kind of rotary fin heat exchange tube (see attached figure 1 ), including an aluminum tube 1 with a channel 7 in the middle, and a spiral fin 2 is spirally wound on the outside of the aluminum tube.

[0033] The spiral fins are strip-shaped structures of equal thickness (see attached Figure 4 ). One side of the spiral fin is a straight edge, and the other side of the spiral fin is a wave edge, and the straight edge is close to the surface of the aluminum tube. The ratio of the width of the wavy side to the width of the spiral fin itself is 2:4. The wavy side is a single-wave structure formed by connecting multiple crests 5, and the crests are connected by a straight section 6, and the height of the crest is the thickness of the spiral fin. 3 times.

[0034] Aluminum tube (see attached Figure 6 ) is a round tube, the aluminum tube is provided with a single channel 7 inside, and the inner wall of the aluminum tube is an inner tooth wall with triangul...

Embodiment 3

[0035] Embodiment 3: a kind of rotary fin heat exchange tube (see attached figure 1 ), including an aluminum tube 1 with a channel 7 in the middle, and a spiral fin 2 is spirally wound on the outside of the aluminum tube.

[0036] Aluminum tube (see attached Figure 7 ) is a round tube, and there are multiple channels inside the aluminum tube, and the channels are separated by channel walls 9 . The channel wall is cross-shaped, and the cross-shaped channel wall divides the interior of the aluminum tube into four channels. The outer diameter specification of the aluminum tube of this structure is 6-20mm, and the wall thickness of the aluminum tube is 0.5-2mm. The aluminum tube here has an outer diameter of 10 mm and a wall thickness of 1 mm. When the spiral fin is wound to the outside of the aluminum tube, the spiral fin is upright, and the pitch of the spiral winding is 8mm. Refer to embodiment 1 or embodiment 2 for all the other structures.

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Abstract

The invention relates to a rotary fin type heat exchange pipe and aims at expanding the radiating area and improving the radiating effect. The rotary fin type heat exchange pipe comprises an aluminum pipe with a channel at the middle; a rotary fin is spirally wound on the exterior of the aluminum pipe; the rotary fin is of a strip structure; one side of the rotary fin is a straight side, the other side of the rotary fin is a wavy side, and the straight side is closely attached to the outer surface of the aluminum pipe; and the rotary fin is spirally wound along the axis of the aluminum pipe at equal space. One side of the rotary fin is a straight side, the other side is a wavy side, the straight side is closely attached to the outer part of the aluminum pipe, and the wavy side is located on the outer side; thus the radiating area of the rotary fin is expanded, and the radiating effect of the heat exchange pipe is improved; and moreover, the rotary fin is a strip inner cavity which does not form a closed structure to ensure that the two side surfaces of the rotary fin are in contact with the outside for sure.

Description

technical field [0001] The invention relates to a heat exchange tube, in particular to a spiral fin heat exchange tube in which spiral fins are spirally wound outside the aluminum tube. Background technique [0002] Heat exchange tubes are mainly used in equipment that transfers part of the heat of a hot fluid to a cold fluid, and the fluid flows through the heat exchange tubes for heat exchange. Heat exchangers are common equipment in chemical industry, petroleum, power, food and many other industrial sectors, and play an important role in production. An important part of the heat exchanger is the heat exchange tube, and the heat exchange effect of the heat exchange tube is also an important guarantee for the performance of the heat exchanger. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers, etc., and are more widely used. There are many types of heat exchangers, but according to the principle and method of he...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F1/36
Inventor 韩建文蒙永云夏建宏
Owner ZHEJIANG KANGSHENG CO LTD