Design method of vertical finned tube type heat exchanger

A heat exchanger and finned tube technology, which is applied in the field of fast reactor accident waste heat removal, can solve the problems that cannot meet the design requirements

CN110008579AActive Publication Date: 2019-07-12CHINA INSTITUTE OF ATOMIC ENERGY
8 Cites 4 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-07-12

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a design method of a vertical finned tube type heat exchanger. The design method comprises the following steps: a, determining the total heat exchange amount of the vertical finned tube type heat exchanger; b, determining a total heat exchange area according to the total heat exchange amount; c, determining the arrangement mode of vertical fin heat exchange tubes of the vertical fin tube type heat exchanger according to the total heat exchange area; d, determining the air side heat transfer coefficient and the resistance coefficient of the vertical finned tube type heatexchanger through experiments according to the total heat exchange area of the vertical finned tube type heat exchanger, the determined parameters of the vertical finned tube type heat exchanger in the arrangement mode and the air flowing direction; e, checking and calculating the heat exchange area and the resistance coefficient of the vertical finned tube type heat exchanger according to the airside heat transfer coefficient and the resistance coefficient; and f, shaping the vertical finned tube type heat exchanger according to the checking calculation result so as to obtain a shaped product.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of fast reactor accident waste heat discharge, and more specifically, relates to a design method of an air heat exchanger. Background technique

[0002] At present, the basic principle of passive waste heat removal is natural circulation, that is, the use of fluid gravity, inertia, natural convection, diffusion, evaporation, condensation and other principles to remove waste heat from the core under accident conditions. The setting of the corresponding system can simplify the special safety facilities, reduce equipment and components, reduce possible misoperations caused by personnel intervention, improve the relationship between man and machine, and improve the inherent safety of nuclear power plants. Therefore, technically speaking, passive technology is an advanced safety technology at present and represents the development trend of a new generation of nuclear power.

[0003] In order to meet the passive requiremen...

Examples

Embodiment Construction

[0084] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Apparently, the described embodiment is one embodiment of the present invention, but not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0085] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by those skilled in the art to which the present invention belongs.

[0086] The vertical fin tube heat exchanger is very different from the traditional heat exchanger. The angle at which the air scours the heat exchange tube vari...