Dot-matrix type core based on bionics of tiny staggered alveolar heat exchanger and heat exchanger

Abstract

The invention discloses a dot-matrix type core based on bionics of a tiny staggered alveolar heat exchanger. The core comprises a shell, the inner part of the core is divided into two layers by a heatexchange plate, a plurality of layers of dot-matrix type rib strip combinations are arranged in each layer of cavities, each layer of the dot-matrix type rib strip combinations is composed of a plurality of columns of discontinuous ribs facing the same direction, and each column of the discontinuous ribs is formed by arranging a plurality of same short ribs in a dashed mode. The facing directionsof every two adjacent layers of the discontinuous ribs are not aligned, the short ribs of every two adjacent layers have contact points, and each layer of the short ribs are supported and fixed by the short ribs of the adjacent layer in contact with corresponding layer of the short ribs. Bionic elements are integrated into the design of the heat exchanger to design the tiny staggered alveolar heat exchanger, the structure improves the performance of the heat exchanger from two aspects including the heat transfer coefficient and the heat transfer area, the structure is light and simple and convenient, and the core is suitable for an aerospace heat exchanger.

Description

Technical field [0001] The invention belongs to the technical field of heat exchange equipment, and specifically relates to a bionic-based lattice type micro-interlaced alveolar heat exchanger core and a heat exchanger. Background technique [0002] Heat exchangers are widely used in industry. The design of advanced heat exchangers is inseparable from the low energy consumption and efficient operation of equipment in the power, chemical, marine, refrigeration and machinery fields. In order to improve the heat exchange capacity of the heat exchanger, there are generally the following three methods: 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 cold and hot fluids flow back. Increasing the heat exchange area means inc...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a bionic-based dot-matrix micro-staggered alveolar heat exchanger core, which can improve the performance of the heat exchanger and reduce the volume of the heat exchanger core by referring to the interlaced and compartmental structure of the alveoli of the organism , which 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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