A high-strength heat-exchanging fin with variable-height continuous protrusions

Abstract

The invention discloses a high-strength heat exchange fin with variable-height continuous protrusions. The heat exchange fin comprises a fin base body, a heat exchange pipe, an edge folding structure,low-protrusion structures, transition slope structures, high-protrusion structures and arc connecting structures. Variable-height continuous protrusion structures arranged around a pipe hole are arranged on the fin base body. The low-protrusion structures and the high-protrusion structures are connected through the transition slope structures; and the strength of the fin is improved through the edge folding structure and the arc connecting structures. By means of the high-strength heat exchange fin with the variable-height continuous protrusions, the synergistic effect of heat exchange and resistance reducing can be enhanced through the variable height, and the strength of the fin can be effectively improved through the continuous protrusions.

Description

technical field [0001] The invention belongs to the technical field of heat exchangers, and relates to a tube-fin heat exchanger fin suitable for various industries such as HVAC, refrigeration, chemical industry, automobile, etc. hot fins. Background technique [0002] The heat exchanger is one of the important components in the air conditioner, and its performance directly affects the overall performance of the air conditioner. As my country's energy efficiency requirements for household air conditioners are getting higher and higher, especially how to improve the performance of heat exchangers at low cost is the focus of analysis and research. At present, tube-fin heat exchangers are mainly used in air conditioners. Due to the poor heat transfer performance of the air side, the thermal resistance of this heat exchanger is mainly concentrated on the air side outside the tube, and the thermal resistance outside the tube can account for 80% of the total thermal resistance. ...

AI Technical Summary

Problems solved by technology

However, traditional slotted or louvered fins are usually suitable for heat transfer enhancement in non-frosting conditions, because traditional slotted or louvered fin reinforcement structures are often easily blocked by frost layers in frosting conditions, thereby reducing the Heat transfer performance of fins

[0003] Although the existing conventional fin strengthening structure improves the heat transfer performance under non-frosting conditions, the fin gaps are often easily blocked by the frost layer under frosting conditions, thereby reducing the heat transfer under frosting conditions performance

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