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Triangular convex-stab-shaped plate-fin heat exchanger used for condensation of non-azeotropic multi-component mixture

A plate-fin heat exchanger and mixture technology, which is applied in the field of F28D heat exchangers and heat exchangers, can solve the problems of reducing the average liquid film, the effect is not obvious, the condensation heat transfer process and mechanism are complex, and it is easy to achieve. The effect of processing realization, energy saving and heat exchange efficiency improvement

Active Publication Date: 2016-01-20
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Triangular convex-stab-shaped plate-fin heat exchanger used for condensation of non-azeotropic multi-component mixture
  • Triangular convex-stab-shaped plate-fin heat exchanger used for condensation of non-azeotropic multi-component mixture
  • Triangular convex-stab-shaped plate-fin heat exchanger used for condensation of non-azeotropic multi-component mixture

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Embodiment Construction

[0045] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0046] In this article, if there is no special explanation, when it comes to formulas, " / " means division, and "×" and "*" mean multiplication.

[0047] like figure 1 As 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 fins 7 include an inclined part 4 inclined to the plate 3, and the thorns 6 are processed on the inclined part 4 by stamping, so that the fluid on both sides of the inclined part 4 can communicate through the holes formed by stamping on the inclined part 4; The spurs 6 extend outwards from the inclined portion 4 .

[0048] By setting the stab 6, it has the following advantages:

[0049]1) On ...

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Abstract

The invention provides a triangular convex-stab-shaped plate-fine heat exchanger used for condensation of a non-azeotropic multi-component mixture. The plate-fin heat exchanger comprises parallel plates; fins are arranged between the plates; the fins comprise inclined parts inclining towards the plates; convex stabs are machined on the inclined parts in a stamping mode, so that fluid on the two sides of the inclined part circulates through holes formed in the inclined parts in a stamping mode, and the convex stabs extend outwards in the flowing direction of the mixture from the inclined parts. The novel triangular convex-stab-shaped plate-fine heat exchanger is suitable for being used in condensation of the non-azeotropic multi-component mixture, so that condensation of the non-azeotropic multi-component mixed medium is achieved, the heat exchange efficiency is improved, and the fluid flowing resistance is reduced.

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. to reduce 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. The same refrigerant or product also exchanges heat in different temperature ranges. Therefore, the condensing equipment is required to facilitate the simultaneous hea...

Claims

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Application Information

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IPC IPC(8): F28D9/00F28F3/04
Inventor 张冠敏师艳平冷学礼范明秀柏超邱燕
Owner SHANDONG UNIV
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