Heat exchange plate with streamlined rib structure and printed circuit board heat exchanger including it

Abstract

The invention provides a heat exchange plate with a streamline structure, and a printed circuit board heat exchanger with same. The first segment of the upper arc and the first segment of the lower arc of a streamline rib extend to the position of a maximum incircle from the front edge of a wing form, each first segment is a convex smooth curve, the rear end of each convex smooth curve is in tangency with the maximum incircle, second segments extend to the rear edge of the wing form from the maximum incircle, each second segment is a concave smooth curve, the front end of each concave smooth curve is in tangency with the maximum incircle, and a smooth continuous curve is formed by each first segment and the corresponding second segment at the position of the maximum incircle. According tothe heat exchange plate with a streamline structure, and the printed circuit board heat exchanger with same, because the original structure of a wing-shaped rib is redesigned and optimized, when heatexchange fluid flows through wing-shaped ribs, changes between the front part and the rear part of the maximum width of a wing-shaped rib happen more violently, and the heat exchange performance of awing-shaped channel is improved; and because structural design is carried out on the front edge and the rear edge of a wing form, the heat exchange fluid can be guided to flow better, and therefore, the pressure drop loss of the wing-shaped channels is reduced.

Description

technical field [0001] The invention relates to the field of heat exchangers, in particular to a heat exchange plate with a streamlined rib structure and a printed circuit board heat exchanger comprising the heat exchange plate. Background technique [0002] The printed circuit board heat exchanger is a high-temperature and high-pressure resistant, high-efficiency and compact heat exchanger. Micro fluid channels are processed on the heat exchange plate channels by etching or machining, and finally the heat exchange plates are combined by diffusion welding. Together, form a heat exchange core. At present, in printed circuit board heat exchangers, the commonly used heat exchange plate channel structures include straight channels, corrugated channels, etc. Compared with straight channels, corrugated channels have improved heat transfer performance but also greatly increased pressure drop. In order to improve the pressure drop of the heat exchange channel, many new structures h...

AI Technical Summary

Problems solved by technology

However, the current conventional airfoil channel still has the problem that the heat transfer performance and pressure drop loss cannot meet the actual needs.

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