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Self-adaptive non-uniform fin plate bundle for heat exchanger and design method of flow channel thereof

A finned plate, non-uniform technology, applied in the field of adaptive non-uniform finned plate bundle and its flow channel design for heat exchangers, to achieve the effects of ensuring service life, improving heat exchange capacity, and increasing heat exchange area

Inactive Publication Date: 2021-02-19
JIANGSU UNIV OF SCI & TECH
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  • Application Information

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Problems solved by technology

Provided is an adaptive non-uniform finned plate bundle for heat exchangers and a flow channel design method thereof

Method used

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  • Self-adaptive non-uniform fin plate bundle for heat exchanger and design method of flow channel thereof
  • Self-adaptive non-uniform fin plate bundle for heat exchanger and design method of flow channel thereof
  • Self-adaptive non-uniform fin plate bundle for heat exchanger and design method of flow channel thereof

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Embodiment Construction

[0038] In order to enable those skilled in the art to better understand the technical solution of the present invention, the specific implementation manners of the present invention will be clearly and completely described below according to the accompanying drawings.

[0039] In this embodiment, the heat exchanger required for LNG gasification is taken as an example for illustration.

[0040] Such as image 3 , Figure 7 As shown, a heat exchanger with self-adaptive non-uniform finned plate bundle and its flow channel design method includes the following steps:

[0041] Step 1: According to the required pressure p, temperature t, and flow G of the cold fluid inlet and outlet channels, and because the LNG gasification process is carried out at sea, the required heat exchanger should be as compact as possible, so the fin type in the cold runner adopts snake shape structure;

[0042] Step 2: According to the hot and cold fluid flow G and keep the flow velocity v at 2~8m / s, us...

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Abstract

The invention discloses a self-adaptive non-uniform fin plate bundle for a heat exchanger. The fin plate bundle comprises one or more groups of fin substrates stacked up and down, wherein cold and hotfluid flow channels are arranged in the substrates and form an integrated structure; the cold flow channels are concave channel-shaped structural bodies; a plurality of fins are arranged in the grooves from dense to sparse along the flowing direction; the hot flow channels are provided with a plurality of semicircular independent channels at equal intervals in the vertical direction of the cold flow channels; and a cover plate in sealed connection is arranged at the upper parts of the cold flow channels. The self-adaptive non-uniform fin plate bundle for the heat exchanger provided by the invention is suitable for heat exchange requirements under various different conditions, is more suitable for thermotechnical and hydraulic changes of fluid in the heat exchange process, is capable of effectively enhancing the heat transfer characteristic and effectively improving the hydraulic performance, and is wider in application field. The invention further discloses a flow channel design method of the self-adaptive non-uniform fin plate bundle for the heat exchanger.

Description

technical field [0001] The invention belongs to the technical field of heat exchangers used in refrigeration, energy, chemical industry, etc., and specifically relates to a self-adaptive non-uniform fin plate bundle for heat exchangers and a flow channel design method thereof. Background technique [0002] In recent years, with the growth of my country's industrial demand, the demand for energy is increasing day by day. Therefore, developing and utilizing clean energy is an important measure for the world to deal with the energy crisis. In the field of energy applications, as a key component to improve energy conversion, heat exchangers are crucial to enhance their heat transfer. The improvement of heat exchange technology to improve energy utilization has become an important research content. Heat exchanger devices are widely used in petrochemical, power electronics and other industries. [0003] Especially for fluids such as natural gas whose physical properties change ...

Claims

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Application Information

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IPC IPC(8): F28D9/00F28F3/04
CPCF28D9/00F28F3/046
Inventor 蒋庆峰潘崇耀陈怡丹郭霆卢道华蒋志勇谷家扬
Owner JIANGSU UNIV OF SCI & TECH
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