A right-angle plate fin with spurs

Abstract

The invention provides a right-angle plate fin used for the condensation of non-azeotropic multi-component mixtures, the fin includes a horizontal part and a vertical part, and the vertical part is connected with the horizontal part and is perpendicular to each other, it is characterized in that, The thorns on the vertical part are processed by stamping, so that the fluids on both sides of the vertical part communicate through the holes formed by punching on the vertical part; the thorns extend outward from the vertical part along the flow direction of the mixture. The invention provides a new plate fin suitable for use in the condensation of non-azeotropic multi-component mixtures, so as to solve the condensation of multi-component mixed media with different boiling points, so as to improve heat exchange efficiency and reduce fluid flow resistance.

Description

technical field [0001] The invention belongs to the field of heat exchangers, in particular to a heat exchanger used for condensation of mixed media with different boiling points, and belongs to the field of F28D heat exchangers. Background technique [0002] Condensation of mixed media with different boiling points is natural gas liquefaction (the main components are methane with a boiling point of -162°C, ethane with a boiling point of -88°C, propane with a boiling point of -42°C, etc.), air separation, mixed refrigerant refrigeration, petroleum or waste plastic cracking, biomass The main process of gas production and other industries. In order to reduce the exergy loss of the process, this kind of production process hopes to cool and precipitate components with different boiling points step by step according to the temperature level, and the same refrigerant or product itself also exchanges heat in different temperature ranges, so it is required that the condensing equipm...

AI Technical Summary

Problems solved by technology

Existing studies on condensation heat transfer of non-azeotropic mixed media focus more on the working conditions containing a non-condensable gas, and adopt measures such as low grooves and artificial roughness surfaces to reduce the average liquid film thickness when pure components condense Measures that have been proven to be effective are sometimes ineffective in the presence of noncondensable gases

, while the condensation heat transfer process and mechanism in the natural gas liquefaction and petroleum cracking industries are more complicated, the condensation process usually contains more than two kinds of non-condensable gases, and the heat transfer situation is more complicated

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