压力容器2016，Vol.33Issue(9)：56-63,8.DOI:10.3969/j.issn.1001-4837.2016.09.008
大型制氢转化炉入口集合管应力集中降低方法研究
Study on Reduction Method of Stress Concentration in Inlet Manifold of Large Scale Hydrogen Reformer Furnace
摘要
Abstract
The inlet manifold of large scale hydrogen reformer furnace is studied as the research object, and the reason of the crack is analyzed by the analysis of the deformation and the force.Through measure-ment of inlet manifold and branch pipes in the vertical direction displacement under working state,it is found that the largest vertical displacement difference reaches 40 mm,and horizontal branch pipe dis-placement difference to 25 mm,the three-way under the state of bending and torsion.The stress concentra-tion phenomenon is the significant cause of the crack.The finite element method is used to reduce the stress concentration at the crack location and the maximum equivalent stress can be reduced by more than 40%by adding the suspension device of the inlet manifold and the three-way protection.The stress state of the inlet manifold can be improved effectively,and the safety can be improved after the transformation.关键词
制氢转化炉/入口集合管/应力集中/悬吊装置/三通保护器Key words
reformer furnace/inlet manifold/stress concentration/suspension device/three-way protection分类
机械制造引用本文复制引用
丁宇奇,邱枫,刘巨保,魏学军,窦世山,马卿..大型制氢转化炉入口集合管应力集中降低方法研究[J].压力容器,2016,33(9):56-63,8.基金项目
国家自然科学基金青年基金项目（51604080）；东北石油大学青年科学基金项目 （）
