Fishbone-type tiny staggered alveoli heat exchanger core based on bionics and heat exchanger

Abstract

The invention discloses a fishbone-type tiny staggered alveoli heat exchanger core based on bionics. The fishbone-type tiny staggered alveoli heat exchanger core comprises a shell. The core in the shell is divided into two layers through a heat exchanging plate. Two layers of fishbone-type rib assemblies are arranged in each layer of cavity, and each layer of fishbone-type rib assemblies is constituted by a plurality of columns of mutually-parallel fishbone-type ribs. Each column of fishbone-type ribs is constituted by a plurality of pairs of short ribs which are arranged in a splay mode, andthe multiple pairs of short ribs of the same column are the same in shape, angle and separation distance. The two layers of fishbone-type ribs do not make contact and are fixed to the inner walls of medium flowing cavities correspondingly. Bionic elements are incorporated into design of a heat exchanger, the tiny staggered alveoli heat exchanger is designed, the properties of the heat exchanger are improved from the two aspects of the heat transfer coefficient and the heat transfer area through the fishbone-type tiny staggered alveoli heat exchanger core, and the fishbone-type tiny staggered alveoli heat exchanger core is light, simple and convenient, and is suitable for being used for the heat exchanger for aerospace.

Description

technical field [0001] The invention belongs to the technical field of heat exchange equipment, and in particular relates to a bionic-based fishbone-type tiny interlaced alveolar heat exchanger core and the heat exchanger. Background technique [0002] Heat exchangers are widely used in industry. To achieve low energy consumption and high-efficiency operation of equipment in the fields of power, chemical industry, shipbuilding, refrigeration and machinery, the design of advanced heat exchangers is inseparable. In order to improve the heat transfer capacity of the heat exchanger, there are generally the following three means: increase the heat transfer temperature difference, increase the heat transfer area, and increase the convective heat transfer coefficient. In a heat exchanger without phase change, increasing the heat transfer temperature difference is usually achieved by rationally arranging the flow channels, such as making the hot and cold fluid flow countercurrently....

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a bionic-based fishbone-type tiny interlaced alveolar heat exchanger core, which can improve the performance of the heat exchanger by referring to the interlaced and compartmental structure of the alveoli of the organism, and at the same time reduce the volume of the heat exchanger core. It solves the problem that it is difficult to balance the high heat transfer performance and micro volume of the existing heat exchanger core

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