本文以某深海远程管道固体传输装置项目为基础，结合深海远程固体传输装置的管体结构、特点、制造工艺和工况，通过对管体内孔防腐结构的迭代研究，对不同结构之间耐蚀的优劣进行了详细的分析对比，为后续的深海管道及狭长内孔管体防腐结构设计提供解决方案。

Based on a deep-sea long-distance pipeline solid transmission device project, combined with the deep-sea long-distance solid transmission device tube structure, characteristics, manufacturing technology and working conditions, the paper analyzes and compares the advantages and disadvantages of corrosion resistance between different structures, and provides solutions for the subsequent design of deep-sea pipelines and narrow-long inner-bore tubes.