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Novel fin heat exchanger of louver

A technology of louver fins and louver fins, which is applied in the direction of heat sinks, heat transfer modification, heat exchange equipment, etc., can solve the problems of low heat transfer efficiency of louver fins and large air side resistance, and reduce pressure drop and strengthen Effect of heat transfer and thickness reduction

Inactive Publication Date: 2016-05-04
ZHENGZHOU UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a new louver fin heat exchanger, aiming to solve the problems of low heat exchange efficiency and large air side resistance of the existing louver fins

Method used

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  • Novel fin heat exchanger of louver
  • Novel fin heat exchanger of louver
  • Novel fin heat exchanger of louver

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] figure 1 A schematic structural view of a novel louver-fin heat exchanger provided by an embodiment of the present invention is shown. For ease of description, only parts related to the embodiments of the present invention are shown.

[0025] A new type of louver fin heat exchanger, the louver fin heat exchanger includes: inclined substrate 1, louver fin 2, transition substrate 3, porous flat tube 4; the louver fins are grouped and installed on the inclined substrate 1 ; every two groups of louver fins 2 are connected by a transition substrate 3; every two groups of inclined substrates 1 a...

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Abstract

The invention belongs to the field of heat exchangers and provides a novel fin heat exchanger of louver. The fin heat exchanger of the louver comprises oblique base plates, louver fins, transition base plates and multi-hole flattened tubes. The louver fins are installed on the oblique base plates in a grouped mode. Every two adjacent louver fins are connected through the transition base plates, and every two adjacent oblique base plates are installed between the upper multi-hole flattened tube and the lower multi-hole flattened tube in an inverted-V-shaped mode. According to the novel fin heat exchanger, when air enters a fin area along the oblique base plates, the flow direction of air is changed through the louver fins, and meanwhile air is prevented from continuing to form a thermal boundary area layer on the oblique base plates; due to the fact that the louver fins have a flow disturbing function, the thickness of the thermal boundary area layer on the louver fins is greatly decreased, and therefore the effect of reinforcing heat conduction is achieved; in addition, the pressure drop on the air side is greatly reduced through the oblique base plates while turbulent flow is increased, so that the heat exchange effect is improved, and meanwhile the resistance loss on the air side is reduced.

Description

technical field [0001] The invention belongs to the field of heat exchangers, in particular to a novel louver-fin heat exchanger. Background technique [0002] As a new topic of compact heat exchanger, the louver fin heat exchanger is widely used in automobile air conditioning. 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 tube-band fins has a good effect of enhancing heat transfer, and its thermal resistance mainly exists on the air side. Therefore, an effective way to improve its heat exchange efficiency is to reduce the heat transfer on the air side. resistance. For this reason, various high-efficiency fins have been developed one after another, among which the effect of louver fins is one of the best. [0003] In the existing louvered fin heat exchanger patents, several groups of fins with certain window opening angles are generally provided on the basis of flat substrates...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F13/02F28F3/02
CPCF28F13/02F28F3/027F28F2215/08
Inventor 周俊杰牛玲绳冉冉
Owner ZHENGZHOU UNIV
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