A parallelogram plate-fin heat exchanger

A technology of plate-fin heat exchanger and plate, which is applied in the field of F28D heat exchanger and heat exchanger, can solve the problems of inconspicuous effect, complicated heat transfer situation, complex condensation heat transfer process and mechanism, etc., and achieve improvement Heat exchange efficiency, production difficulty and cost increase, and easy-to-achieve effect

Active Publication Date: 2017-01-25
山西靖德科技股份有限公司
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  • Abstract
  • Description
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  • 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 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 parallelogram plate-fin heat exchanger
  • A parallelogram plate-fin heat exchanger
  • A parallelogram plate-fin heat exchanger

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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 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. 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 .

[0050]Because the inclined p...

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Abstract

The invention provides a plate-fin heat exchanger. The plate-fin heat exchanger comprises parallel sheets. Fins are arranged between the sheets. Each fin comprises an inclined part inclining towards the corresponding sheet. Protrusions are machined on the inclined parts in a punching manner so that fluid on the two sides of the inclined parts can be communicated with holes formed in the inclined parts in a punching manner. The protrusions extend outwards in the flowing direction of a mixture from the inclined parts. The novel plate-fin heat exchanger is provided, and therefore condensation of a mixed medium of multiple components with different boiling points is achieved, the heat exchange efficiency can be improved, and fluid flowing resistance can be 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. 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): F28D9/00F28F3/04
Inventor 赵炜范明秀
Owner 山西靖德科技股份有限公司
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