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Right angle plate-fin type heat exchanger with spikes for non-azeotropic multicomponent mixture condensation

A technology of plate-fin heat exchangers and mixtures, applied in the direction of indirect heat exchangers, heat exchanger types, heat exchange equipment, etc., can solve the problem of reducing the average liquid film, the effect is not obvious, and the condensation heat transfer process and mechanism are complicated and other problems, to achieve the effect of easy processing, energy saving and heat exchange efficiency improvement

Active Publication Date: 2015-12-16
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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  • Right angle plate-fin type heat exchanger with spikes for non-azeotropic multicomponent mixture condensation
  • Right angle plate-fin type heat exchanger with spikes for non-azeotropic multicomponent mixture condensation
  • Right angle plate-fin type heat exchanger with spikes for non-azeotropic multicomponent mixture condensation

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Embodiment Construction

[0046] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0047] In this article, if there are no special instructions, when it comes to formulas, " / " means division, and "×" and "*" mean multiplication.

[0048] Such as 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 are formed between For the fluid channel 2, fins 7 are arranged between the adjacent plates 3. The fin 7 includes a vertical portion 4 that is perpendicular to the plate 3, and the spurs 6 are processed by punching on the vertical portion 4, so that the fluid on both sides of the vertical portion 4 is connected through the holes formed by punching on the vertical portion 4; The spurs 6 extend outward from the vertical portion 4.

[0049] By setting spur 6, it has the following advan...

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Abstract

The invention provides a plate-fin type heat exchanger for non-zaeotropic multicomponent mixture condensation. The plate-fin type heat exchanger comprises plates which are parallel to one another, fins are arranged between the plates, the fins comprise perpendicular parts perpendicular to the plates, spikes are machined on the perpendicular parts in a stamping mode, and therefore fluid at the two sides of the perpendicular parts is communicated through holes formed in the perpendicular parts in a stamping mode; the spikes extend outwards from the perpendicular parts in the flow direction of a mixture. By means of the novel plate-fin type heat exchanged used for the non-azeotropic multicomponent mixture condensation, the problem of the condensation of multicomponent mixed media with different boiling points is solved, the heat exchange efficiency is improved, and flow resistance of the fluid 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] The condensation of mixed media with different boiling points is natural gas liquefaction (the main components are methane with boiling point -162℃, ethane with boiling point -88℃, propane with boiling point -42℃, 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 gradually cool and precipitate components with different boiling points 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 heat exchange of multiple ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D9/02F28F3/04
Inventor 柏超张冠敏师艳平冷学礼范明秀邱燕
Owner SHANDONG UNIV
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