A right-angle plate fin with spurs

A technology of right-angle plates and fins, applied in the field of heat exchangers, F28D heat exchangers, can solve the problems of complex condensation heat transfer process and mechanism, reduce the average liquid film, and complex heat transfer conditions, and achieve the difficulty of production and Increased cost, improved heat exchange efficiency, and easy-to-achieve effects

Active Publication Date: 2017-06-16
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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  • A right-angle plate fin with spurs
  • A right-angle plate fin with spurs
  • A right-angle plate fin with spurs

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Embodiment Construction

[0047] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0048] In this article, if there is no special explanation, when it comes to formulas, " / " means division, and "×" and "*" mean multiplication.

[0049] Such as figure 1As shown, a plate-fin heat exchanger for the condensation of non-azeotropic multi-component mixtures, the plate-fin heat exchanger includes plates 3 parallel to each other, and the adjacent plates 3 form a In the fluid channel 2, fins 7 are arranged between the adjacent plates 3. The fin 7 includes a vertical part 4 perpendicular to the plate 3, and the thorns 6 are processed on the vertical part 4 by stamping, so that the fluid on both sides of the vertical part 4 communicates through the holes formed by stamping on the vertical part 4; The spurs 6 extend outwards from the vertical portion 4 .

[0050] By setting the stab 6, it has the following advantages:

[0051] 1)...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F3/08
Inventor 邱燕冷学礼张冠敏师艳平范明秀柏超
Owner SHANDONG UNIV
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