Inclined fin type parallel flow heat exchanger and production process thereof

Abstract

The invention discloses an inclined fin type parallel flow heat exchanger and a production process thereof. The inclined fin type parallel flow heat exchanger includes a pair of collecting pipes parallel to each other and separated from each other, multiple flat pipes, partition pieces and inclined fins, wherein the two ends of the flat pipes communicate with inner cavities of the two collecting pipes, and the flat pipes are installed in sequence and in parallel in a left and right spaced mode; and the partition pieces are installed in the collecting pipes, and the inclined fins are installedbetween the every two adjacent flat pipes. In the production process, the collecting pipes, the partition pieces, an end cover, the flat pipes and the inclined fins are produced separately firstly; then the flat pipes are installed between the two collecting pipes; the inclined fins are placed between the adjacent flat pipes to form a semi-finished product entirety; after the semi-finished productentirety is packed, the partition pieces and the end cover are sealed; the inclined fins are fixed in the semi-finished product entirety through brazing; and at last, quality inspection and packing are conducted. So the inclined fin type parallel flow heat exchanger has multiple advantages that air resistance is low, condensate water is not easily accumulated and frozen, heat resistance is low, and heat exchange efficiency is high. Meanwhile, the production process of the inclined fin type parallel flow heat exchanger is stable and reliable, and production quality is improved.

Description

technical field [0001] The invention relates to the technology in the field of parallel flow heat exchangers, in particular to an inclined fin type parallel flow heat exchanger and a manufacturing process thereof. Background technique [0002] Parallel flow heat exchangers usually include headers, flat tubes, fins, etc. During operation, the refrigerant flows along the flat tubes between the headers in the design direction. Air for heat exchange. In the prior art, the fins are vertically designed, and the condensed water on the surface of the fins is not drained smoothly, and it is easy to freeze, which causes the heat resistance of the fins to increase and affects the heat exchange efficiency. In addition, the parallel flow heat exchangers in the prior art have shortcomings such as process stability and poor rationality, which often lead to weak connections between parts in the parallel flow heat exchanger, large gaps, and stable Poor performance and other problems limit ...

AI Technical Summary

Problems solved by technology

In the prior art, the fins are vertically designed, and the condensed water on the surface of the fins is not drained smoothly, and it is easy to freeze, resulting in an increase in the thermal resistance of the fins, which affects the heat transfer efficiency

In addition, the parallel flow heat exchangers in the prior art have shortcomings such as process stability and poor rationality, which often lead to weak connections between parts in the parallel flow heat exchanger, large gaps, and stable Poor performance and other problems limit the quality and service life of parallel flow heat exchangers and their applied products

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