Miniature heat exchanger integrating condensing, throttling and evaporation

Abstract

The invention provides a miniature heat exchanger integrating condensing, throttling and evaporation. The miniature heat exchanger comprises a miniature heat exchanger body X which is formed by multiple layers of sheet metal through vacuum hot pressing diffusion welding, a refrigerant inlet connector A, a refrigerant outlet connector F, a second-kind fluid inlet connector C, a second-kind fluid outlet connector D, a third-kind fluid inlet connector G and a third-kind fluid outlet connector H. The miniature heat exchanger body X is an entity which is formed in a way that a plurality pieces of sheet metal, with different runners etched in the surfaces, are stacked according to a certain sequence and then are heated and compressed under a vacuum environment. The miniature heat exchanger has the advantages that condensing, throttling and evaporation of refrigerant can be completed in one device, cooling of a second kind of fluid and heating of a third kind of fluid can be achieved at the same time, a condenser, a throttling element and an evaporator are highly integrated, pipeline connection among the three parts is omitted, compact structure and self heat insulation are achieved, and system size can be effectively reduced when the miniature heat exchanger is applied to a miniature refrigerating system.

Description

technical field [0001] The invention provides an integrated micro heat exchanger, belonging to the field of micro refrigeration, which can complete the condensation, throttling and evaporation process of refrigerant in a single device, and simultaneously realize the heating of the second fluid and the heating of the third fluid cool down. Because the present invention omits the pipeline connection between the condenser and the throttling device, and between the throttle device and the evaporator, the welding points of the pipeline are reduced, the structure is extremely compact, and it is easy to realize miniaturization and miniaturization, and can be widely used In a micro refrigeration system using a vapor compression refrigeration cycle. Background technique [0002] In some machinery and equipment, it is often necessary to cool a part of the fluid and heat another part of the fluid at the same time, so as to obtain two fluids with different temperature ranges at the sam...

AI Technical Summary

Problems solved by technology

The pipelines in the small and micro refrigeration system are difficult to arrange and difficult to weld during production, and the welding quality is difficult to guarantee

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