Opposite-rounded-corner oblique-breaking-type finned tube non-contact thermal resistance heat transmission element

Abstract

The invention discloses an opposite-rounded-corner oblique-breaking-type finned tube non-contact thermal resistance heat transmission element and belongs to the technical field of heat exchanging. The opposite-rounded-corner oblique-breaking-type finned tube non-contact thermal resistance heat transmission element comprises radiating fins and a rectangular heat transmission flat tube. The radiating fins are oblique opposite-rounded-corner ripple breaking fins, the fins and the heat transmission flat tube are integrally formed, and welding is of no need. Contact heat resistance is of no need, heat transmission efficiency is high, a manufacturing technology is simple, the structure is compact, size is small, anti-shocking capacity is high, and accordingly the opposite-rounded-corner oblique-breaking-type finned tube non-contact thermal resistance heat transmission element can be widely used in heat exchangers of various products such as an air conditioner, cooling equipment and vehicles.

Description

technical field [0001] The invention relates to a non-contact thermal resistance heat transfer element of a finned tube with oblique cut-off rounded corners applied to various heat exchangers, and belongs to the technical field of heat exchange. Background technique [0002] The heat transfer elements used in heat exchangers such as air conditioners, vehicles, and refrigeration equipment are generally composed of copper tubes, aluminum tubes or microchannel tubes and aluminum fins. The heat transfer tubes and cooling fins of the heat transfer elements are split The structure is usually connected by expansion tube or brazing method, and the manufacturing and processing technology is relatively complicated. The contact thermal resistance between the fin and the heat transfer tube is relatively large; and the anti-vibration ability is poor. Some heat exchangers (such as construction machinery) have a harsh working environment. The joints of the tubes tend to be partially loosen...

AI Technical Summary

Problems solved by technology

[0002] The heat transfer elements used in heat exchangers such as air conditioners, vehicles, and refrigeration equipment are generally composed of copper tubes, aluminum tubes or microchannel tubes and aluminum fins. The heat transfer tubes and cooling fins of the heat transfer elements are split The structure is usually connected by expansion tube or brazing method, and the manufacturing and processing technology is relatively complicated

The contact thermal resistance between the fin and the heat transfer tube is relatively large; and the anti-vibration ability is poor. Some heat exchangers (such as construction machinery) have a harsh working environment. The joints of the tubes tend to be partially loosened or even broken, which will also increase the thermal contact resistance, resulting in a significant decline in its heat transfer performance; at the same time, due to the lack of copper resources in my country, the copper used to manufacture heat transfer tubes in recent years Material prices are high, which greatly increases the production cost of heat exchangers

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