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Flat tube for air conditioner

A flat tube and air conditioner technology, applied in the field of heat exchange elements, can solve problems such as poor heat transfer effect

Inactive Publication Date: 2007-10-10
豫新航空环控设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The channel wall of this kind of multi-channel flat tube is a smooth surface, and the refrigerant is easy to form laminar flow when flowing in the channel, and the heat transfer effect is poor.

Method used

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  • Flat tube for air conditioner

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Embodiment Construction

[0005] The present invention will be described in detail in conjunction with the above drawings. In order to avoid laminar flow when the refrigerant flows in the flat tube channel, the present invention sets bumps 2 on the upper and lower surfaces of the flat tube 1 channel, and the bumps are along the longitudinal direction of the flat tube. Equidistant distribution, or unequal distribution, the protruding points on the upper and lower inner surfaces can be one by one, or they can be staggered with each other. The protruding points are circular protruding points, and their sizes can be equal or different. equal. The protruding points shown in FIG. 2 are circular protruding points 2 that are equidistant and relatively distributed up and down. The bumps can be formed by stamping or rolling. The protruding points on the flat tube wall can make the refrigerant flow turbulent, and is beneficial to boiling and condensation heat exchange.

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Abstract

A flat tube used on air-conditioning is prepared for setting projected points in the same size on internal wall of flat tube channel, distributing projected points on internal wall of flat tube channel in equal distance along longitudinal direction and setting projected points on top internal wall of flat tube channel to be opposite to each other with projected points on bottom internal wall of flat tube channel.

Description

Technical field: [0001] The invention relates to a heat exchange element, in particular to a flat tube for an air conditioner evaporator and a condenser. Background technique: [0002] Automotive air conditioners widely use flat tubes for tube-and-belt evaporators and condensers, and parallel-flow evaporators and condensers, in which there are multiple parallel refrigerant channels with square holes. The channel walls of the multi-channel flat tubes have smooth surfaces, and the refrigerant tends to form laminar flow when flowing in the channels, and the heat transfer effect is poor. Invention content: [0003] The object of the present invention is to provide a flat tube for an air conditioner, which has a good heat transfer effect. The technical solution of the invention is that the inner wall of the flat tube channel is provided with protruding points. The shape of the protruding points is circular or oval. The protruding points on the inner wall of the flat tube cha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F1/40
Inventor 王志国徐航李全成
Owner 豫新航空环控设备有限公司
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