Fin and heat exchanger with the same

Abstract

The invention provides a fin and a heat exchanger with the fin. The fin comprises a plurality of first fins and second fins arranged in a mutual staggered manner; each of the first fin unit and the second fin unit comprises a plurality of window fins and bottoms located in a fluid flowing path; the window fins on the first fin unit include the first window fins and the window fins on the second fin unit include the second window fins; the first window fins and the second window fins are arranged in a mutual staggered manner in a fluid inflow direction; a first gap and a second gap are formed between each first window fin and two adjacent second window fins; at least one window fin is inclined at a certain angle towards the left or the right along the bottom in the fluid inflow direction, and the angle of inclination is greater than 0 degree and smaller than 90 degrees. According to the fin and the heat exchanger with the fin, the flow resistance of the fluid in the heat exchanger can be reduced, the disturbance of the fluid while flowing in the heat exchanger is more violent, and the heat exchange performance of the heat exchanger is improved.

Description

technical field [0001] The invention belongs to the technical field of heat exchangers, in particular to a plate heat exchanger. Background technique [0002] Plate-fin heat exchangers are usually composed of partitions, fins, seals and deflectors. Fins, deflectors and seals are placed between two adjacent partitions to form a sandwich, and fluid channels for fluid circulation are formed in the sandwich; such sandwiches are stacked in different ways according to actual needs, brazed The plate bundle is formed as a whole; the plate-fin heat exchanger is formed by assembling the plate bundle with the corresponding head, connecting pipe and other parts. [0003] A plate-fin heat exchanger is defined as a heat exchanger composed of plates and fins. Fins are its core components. Common types of fins are: straight, zigzag, shaped, porous, and louvered, etc. . Compared with the traditional heat exchanger, the plate-fin heat exchanger has a secondary surface and a very compact st...

AI Technical Summary

Problems solved by technology

[0005] However, when the fluid flows in the fluid channel formed in the two plates, when the fluid flows through the fins, it will be hindered by the fin window fins to continuously generate split flow on the transverse plane, although the boundary layer of the fluid is constantly being blocked during the split flow process. The fins are broken, but at the same time there is also the problem of large fluid flow resistance

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