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A slanted plate fin

A technology of inclined plates and fins, which is applied in F28D heat exchangers and heat exchangers, can solve the problems of inconspicuous effect, complex condensation heat transfer process and mechanism, and complex heat transfer conditions, so as to reduce fluid pressure and make Difficulty and cost increase, easy processing to achieve the effect

Active Publication Date: 2018-01-26
SUZHOU EDWARD PETROCHEM CO LTD
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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 case of non-condensable gases. However, 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 types of non-condensable gases. The thermal situation is more complicated

Method used

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  • A slanted plate fin
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Embodiment Construction

[0048] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0049] In this article, if there is no special explanation, when it comes to formulas, " / " means division, and "×" and "*" mean multiplication.

[0050] 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. Said fins 7 comprise inclined portions 4 inclined to the plates 3, said inclined portions being parallel to each other. Protrusions 6 are processed by stamping on the inclined part 4 , so that fluids on both sides of the inclined part 4 communicate through holes formed by stamping on the inclined part 4 ; the protrusions 6 extend outward from the inclined part 4 .

[0051] Because the inclined p...

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Abstract

The invention provides an inclined plate type fin which comprises horizontal parts and inclined parts. The horizontal parts and the inclined parts are connected, protrusions are machined on the inclined parts in a stamping mode, and therefore fluid at the two sides of each inclined part is communicated through holes formed in the inclined parts in a stamping mode. The protrusions extend outwards from the inclined parts in the flowing direction of mixtures. The inclined plate type fin is novel and suitable for a plate-fin heat exchanger, so that condensation of multi-component mixed media different in boiling point is achieved; the heat exchange efficiency is improved, and the fluid flowing resistance is lowered.

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 in 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 the condensing equipment is required to f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F3/04F28D9/00
CPCF28D9/00F28F3/04F28F2215/00
Inventor 赵炜范明秀
Owner SUZHOU EDWARD PETROCHEM CO LTD
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