An optimization method for spiral grooved tubes

Abstract

The invention discloses a spiral groove tube optimization method, which belongs to the field of spiral groove tube heat exchange optimization. Through the overall optimization of the shape of the spiral groove, the present invention can obtain an optimized spiral groove pipe with greater performance improvement. Specifically, by parametrically describing the shape of the spiral groove through a spline curve, it is possible to obtain a pipe that is more sensitive to coordinate changes of control points. Profiled line, so as to meet the requirements for fine adjustment and optimization of profiled line. The present invention adopts the genetic algorithm to screen the better spiral groove profile in the optimized target value, and then can select, intersect and / or mutate the coordinates corresponding to the screened spiral groove profile to obtain the optimized spiral groove profile, and at the same time The optimization target can be iteratively calculated for the optimized spiral groove line, and a more excellent spiral groove line can be obtained; at the same time, the proxy model is used to predict the performance parameters of each generation of population, which replaces a large number of CFD calculation processes and saves computing resources. The optimization cycle is shortened, and the efficiency of the optimization process is improved.

Description

technical field [0001] The invention belongs to the field of heat exchange optimization of spiral grooved tubes, and more specifically relates to a method for optimizing spiral grooved tubes. Background technique [0002] In various industries, heat exchangers are not only an indispensable part to ensure the normal operation of the production process, but among various heat exchange equipment, shell and tube heat exchangers have the advantages of simple structure, low cost, wide range of material selection, and easy manufacturing. etc., have been widely used. The spiral groove tube is an important heat exchange element in the shell and tube heat exchanger, and it is an excellent high-efficiency special-shaped enhanced heat transfer tube. The enhanced heat transfer technology of heat exchange equipment refers to increasing the heat exchange capacity of heat exchange equipment per unit time and unit power consumption through various methods. Higher equipment heat transfer pe...

AI Technical Summary

Problems solved by technology

The groove shape of the spiral grooved tube has an important influence on its heat transfer. The existing spiral groove shape optimization research does not take into account all the changes in the shape of the spiral groove, which limits the optimization effect on the enhanced heat transfer performance of the spiral grooved tube.

Images