摘要
Abstract
The article aims to discuss a manufacturing scheme for a large jacketed fluidized bed reactor shell.The middle section of the reactor shell is mainly composed of a top flange,a bottom flange,three different specifications of cone seals,a heater base ring,and three different specifications of cylinder bodies.The upper and lower sections will be replaced frequently,and it is required that the upper and lower sections of each equipment teach complete swap.Manufactured parts inherently contain fabrication deviations,and assembly errors will occur during fitting.Meanwhile,strict control of misalignment at all fitting joints is required.When adopting the conventional sequential fitting process,accumulated errors will make it difficult to meet the dimensional tolerances of the product.In addition,the evolution of welding distortion cannot be visually observed.The equipment in this project is small-batch trial production.Continued use of the previous production mode results in low operational efficiency and difficulty in satisfying the technical requirements of the product.关键词
法兰同轴度/密封面平行度/密封面垂直度/互换性Key words
Flange coaxiality/Parallelism of sealing surface/Verticality of sealing surface/Interchangeability分类
化学化工
