Distributed finned heat exchanger

Abstract

The invention provides a novel distribution type fin compact heat exchanger designed by the combination with a distributed parameter model, which comprises a baffle plate, a hot fluid side fin, a cold fluid side fin, an end cover and the like. The heat exchanger is characterized in that the idea of the distributed parameter model is applied to the design of the heat exchanger, and the fin types, the number of fins and the fin sizes at different positions in the heat exchanger can be particularly designed according to the heat exchanging conditions at the positions, and the heat exchanging capability in the limited space can be maximized, and the resistance is minimized, thereby lowering energy consumption and saving materials; moreover, the hot side fin and the cold side fin can both be the combination of the fins with various structural sizes.

Description

technical field [0001] The invention relates to a heat dissipation device with a novel structure designed by a new method, which is especially suitable for fields such as aerospace and electronic equipment that require high heat dissipation performance, weight and volume, and energy consumption of heat exchangers. Background technique [0002] The compact heat exchanger is an efficient heat dissipation device, and the heat exchange area per unit volume can reach 700-2500m 2 / m 3 , usually used for heat exchange between two or more fluids, where the fluids are separated by metal partitions. The structural unit of this heat exchanger usually includes three elements: baffles, fins and seals. Fins are placed between two layers of partitions to form a fluid channel. The fins are usually welded on the partitions, and the two sides parallel to the flow direction of the fluid are sealed by seals and combined with the partitions by brazing. Several such structural units are combin...

AI Technical Summary

Problems solved by technology

The compact heat exchanger designed according to the point model is usually a single fin structure, without considering the difference in heat transfer capacity of each part of the heat exchanger, often making the matching effect of local heat transfer performance and local fin type unable to achieve the best For example, fins with strong heat exchange capacity must be used in places with poor heat exchange capacity to meet the heat exchange requirements; however, if the fins are used in positions with strong heat exchange capacity, it is too wasteful, which increases the flow resistance and makes energy It consumes more and wastes more materials, which increases the weight

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