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Homogenization design method of plate-fin heat exchanger

A technology of plate-fin heat exchanger and design method, which is applied in the direction of instruments, calculations, and special data processing applications, etc., and can solve problems such as complex and cumbersome methods, difficult to use, and finite element simulation of plate-fin heat exchangers

Active Publication Date: 2017-12-01
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Claims
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Problems solved by technology

However, due to the periodic and complex structure of the plate-fin heat exchanger, it is difficult to perform finite element simulation of the plate-fin heat exchanger. Using finite element analysis software to design the high-temperature strength of plate-fin heat exchangers has seriously affected the development of plate-fin heat exchangers

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  • Homogenization design method of plate-fin heat exchanger
  • Homogenization design method of plate-fin heat exchanger
  • Homogenization design method of plate-fin heat exchanger

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Embodiment Construction

[0083] Figure 1~3 It is the best embodiment of the present invention, below in conjunction with attached Figure 1~3 The present invention will be further described.

[0084] Such as Figure 1~2 As shown: the core of the plate-fin heat exchanger includes a plate 1 and a fin 2, and a fin 2 is provided between each two adjacent plates 1. Thus, a plurality of flow channels 3 are formed between every two adjacent plates 1 , and the cross-section of the flow channels 3 is isosceles trapezoidal.

[0085] The plate 1 and fin 2 of the core of the plate-fin heat exchanger are brazed and have a compact structure. Unlike conventional homogeneous materials, the core of the plate-fin heat exchanger has the characteristics of a periodic porous structure. Due to the periodicity and complexity of the core structure of the heat exchanger, it is difficult to conduct finite element analysis directly, and it is necessary to use the equivalent homogenization method for finite element analysis....

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Abstract

The invention relates to a uniform design method of a plate-fin heat exchanger, which belongs to the technical field of heat exchangers. It belongs to the technical field of heat exchangers. It is characterized in that it includes the following steps: step a, divide the plate-fin structure into multiple plate-fin cells with the same shape; step b, equivalent the plate-fin cells into uniform solid plates; step c, obtain the plate-fin cells The equivalent thermophysical parameters of the whole plate-fin heat exchanger core are obtained. The calculation method of the thermophysical parameters of the plate-fin heat exchanger solves the problem that the existing technology can only obtain the equivalent thermophysical parameters through experiments or finite element simulation, and the process is cumbersome; the calculation results can be used for the calculation of the plate-fin heat exchanger. The high-temperature strength design simplifies the design process; the uniform design method of the plate-fin heat exchanger can effectively predict the life of the plate-fin heat exchanger serving under high temperature and alternating loads. The high temperature design provides an effective method.

Description

technical field [0001] The invention relates to a uniform design method of a plate-fin heat exchanger, which belongs to the technical field of heat exchangers. Background technique [0002] With the development of science and technology, more and more energy is consumed, so energy conservation and emission reduction and improvement of energy utilization have become the focus of attention. Heat exchange equipment, as a core member of the high-temperature system, not only requires efficient heat exchange performance, but also requires a compact structure. However, most of the existing heat exchange equipment are shell-and-tube heat exchangers, which occupy a large volume and have low heat exchange efficiency, making it difficult to meet the requirements in the fields of aerospace, high-temperature gas-cooled reactors, and gas turbines. The plate-fin heat exchanger has the characteristics of compact structure and high heat exchange efficiency, and the research on the plate-fin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 蒋文春葛磊张玉财巩建鸣涂善东赵慧琴
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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