Structure Optimization Analysis of Distillation Kettle Based on Elastic-plastic Mechanics

doi:10.16182/j.issn1004731x.joss.17-0095

Abstract

Abstract: Based on the analysis of structural strength by elastic mechanics, there is a large stress singularity due to the discontinuity of the equipment structure, which makes the calculation result not consistent with the actual stress of the equipment. According to the actual design and structure of a distillation reactor, based on the theory of elastic-plastic mechanics, through modeling, meshing, loading and constraint analysis, the stress distribution of distillation kettle is analyzed; and the wall thickness and stiffener structure are optimized. The results show that the calculation results are reliable and the design of wall thickness is smaller than the traditional method. It meets the requirements of ASME VIII-2-2015 “another rule of pressure vessel construction”.

Key words: elastic plastic mechanics, finite element method, pressure vessel, structural optimization

CLC Number:

TQ015.9

Hu Xiaodong, Liu Ning, Qi Xiangsong, Wang Jianpeng. Structure Optimization Analysis of Distillation Kettle Based on Elastic-plastic Mechanics[J]. Journal of System Simulation, 2019, 31(2): 360-367.

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