A complex structured heat exchange device and an additive manufacturing method thereof

The laser powder bed melting technology is used to manufacture complex heat exchange devices with a bionic ant nest multi-level branching structure, which solves the problems of low efficiency and poor structural reliability of traditional heat exchangers and achieves efficient heat exchange and improved structural strength.

CN119328142BActive Publication Date: 2025-10-21JILIN UNIVERSITY
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Patent Information

Application Number
CN202411513672.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-28
Publication Date
2025-10-21
Estimated Expiration
2044-10-28

AI Technical Summary

Technical Problem

Traditional heat exchanger structural design makes it difficult to achieve efficient heat exchange, and complex structures are difficult to prepare through traditional processes, resulting in structural stress concentration and fatigue damage, affecting service life and reliability.

Method used

Laser powder bed fusion technology is used to manufacture complex heat exchange components with a multi-level branching structure that mimics an ant nest. Combined with grid-like reinforcement ribs, the components are formed in one step through additive manufacturing to achieve uniform heat distribution and improved structural strength.

Benefits of technology

It improves the heat exchange efficiency, enhances the integrity and reliability of the structure, meets the heat exchange requirements under complex working conditions, and at the same time improves the strength of the structure.

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Abstract

The application discloses a complex-structure heat exchange device and an additive manufacturing method thereof, which comprises a hemispherical base in a cavity structure, wherein the lower end of the hemispherical base is provided with a cold water inlet, and the upper end of the hemispherical base is provided with a plurality of water outlet channels; the upper end of the hemispherical base is connected with a hollow columnar thin shell structure, the side wall of the hollow columnar thin shell structure is provided with a to-be-cooled liquid inlet and a to-be-cooled liquid outlet in directions away from each other at the upper and lower ends; the upper end of the hollow columnar thin shell structure is connected with a hemispherical top cover in a cavity structure, the upper end of the hemispherical top cover is provided with a hot water outlet, and the lower end of the hemispherical top cover is provided with a plurality of water inlets; a multi-stage branch structure flow channel combination is arranged in the hollow columnar thin shell structure after arraying, the water inlets of the multi-stage branch structure flow channel combination are communicated with the water outlet channels on the hemispherical base, and the water outlets of the multi-stage branch structure flow channel combination are communicated with the water inlets on the hemispherical top cover.
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