부산대학교 도서관

With the development of high‐sulfur oil and gas fields and the application of gas‐liquid mixed transportation processes, ordinary carbon steel pipelines are unable to meet the production requirements of high‐sulfur oil and gas fields due to their poor corrosion resistance. Bimetallic composite pipes, which use carbon steel as the outer pipe and corrosion‐resistant alloy as the inner liner, have been developed and applied to effectively solve the problem of pipeline corrosion. However, the inner liner of bimetallic composite pipes is relatively soft, and the extent of wear and damage caused by existing cleaning methods for carbon steel pipes on composite pipes is not yet clear. In response to the above issues, this study selects and investigates the constitutive model of polyurethane rubber, theoretically calculates the stress conditions of the pipe in the pipeline, and uses Finite Element Analysis simulation to analyze the cleaning effect of the pipe impurities based on the shape of the cleaning tool, excess clearance, and operating speed.