Enhanced heat-conductive louver sheets

A louver fin, heat transfer enhancement technology, applied in heat exchange equipment, lighting and heating equipment, tubular elements, etc., can solve problems such as increased air flow resistance, and achieve the effect of improving heat transfer performance and reducing heat transfer area

Inactive Publication Date: 2007-11-21
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with this patented technology, the louver fins have the same window opening angle during the entire air flow process.
The louver fins described in these technical patents not only enhance heat transfer, but also sharply increase the air flow resistance

Method used

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  • Enhanced heat-conductive louver sheets
  • Enhanced heat-conductive louver sheets
  • Enhanced heat-conductive louver sheets

Examples

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Embodiment Construction

[0024] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and processes are provided, but the protection scope of the present invention is not limited to the following implementations example.

[0025] As shown in FIGS. 1 , 2 and 3 , this embodiment includes: a flat substrate 1 and a window fin 2 . The connection relationship is as follows: several groups of window fins 2 are provided on the straight substrate 1, and the flat substrate 1 is connected to the roots of the window fins 2, and forms a window opening angle with the window fins 2; between each group of window fins is the reversing area 5, and the window opening directions of the window fins 2 on both sides of the reversing area 5 are opposite; the window opening angles of the window fins 2 in each group of window...

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Abstract

A fortified heat conducting wing of the shutter, it includes the flat base piece and wings. There are some groups of standing wings on the flat base piece, which connects to the base of the wing forming some window angle. The area between every wing is the direction changing area, both sides of which have counter opening direction. The opening angle of every wing is same, the whole opening angle of every wings decreases as the length for the air flowing increases. This invention can increase the heat exchanging, but has no effect on the resistance of the whole wings. Adopting this heat exchanger, it can reduce the area of the whole wings, reduce the cost and save the material.

Description

technical field [0001] The invention relates to a heat transfer fin in the technical field of refrigeration, in particular to a louver fin for enhancing heat transfer. Background technique [0002] Due to its light weight, small size and high heat transfer efficiency, compact heat exchangers have been widely used in refrigeration and air conditioning, automobiles and chemical industries. The form of compact heat exchanger usually has tube-fin type, plate-fin type and tube-belt type. The heat exchanger composed of flat tubes and tubes with fins has a good effect of enhancing heat transfer, and has been widely used in refrigeration, air conditioning and automobile industries, and has become a substitute for tube fins. For gas-liquid heat exchangers, the controlled thermal resistance of the entire heat exchanger is on the air side, for which various high-efficiency fin surfaces have been developed. Among them, the louver fin is recognized as one of the fins with the most enha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F1/32
Inventor 董军启陈江平叶奇昉陈芝久
Owner SHANGHAI JIAO TONG UNIV
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