烃化补充加热器高压球底组件有限元应力分析与结构优化

FEM Stress Analyzing and Structure 0ptimizing for High Pressure Sphere Subassembly of Thermal Alkylation Exchanger

在石油化工等领域中,随着烃化补充加热器结构趋于大型化和高工作压力方向发展,烃化补充加热器球底组件结构的应力强度分布和结构设计的合理性有待进一步的验证或优化。文章针对某型烃化补充加热器,应用有限元分析计算方法,计算分析高压球底组件的应力分布,依据JB4732、GB150和GB151国家标准的应力评价规范,进行结构设计合理性评价;针对结构设计上存在的不合理现象,最后应用有限元分析计算方法进行一定的结构优化设计,重新进行结构设计,使换热器的综合性能得到了提高。为企业完善设计规范,提高产品的设计质量和设计效率,降低设计生产制造成本打下了良好基础。

In the petroleum and chemical industry, exchanger structures for thermal alkylation are going large-structures and its working pressure is going high-pressure. The structure stress and intensity needs be validated of sphere subassembly of thermal alkylation exchanger and its structure needs be optimized also. The paper uses FEM to analyze and calculate the structure stress of high-pressure sphere subassembly to a thermal alkylation exchanger, and the structure stress results had been gotten. According to structure stress criterions of JB4732Ill , GB150E2~ and GB151 E3], it is evaluated to structure ration- ality. To some lacks found, a result of structure optimizing is gotten to sphere subassembly to use FEM. According to the opti- mizing result, a sphere subassembly is designed once again, and its whole capability is also increased. The researching result perfects designing criterion of enterprises, increases designing quality and efficiency of products, reduces costs of product manufacture for corresponding products could be designed and made of sphere subassembly of thermal alkylation exchanger.