Numerical Simulation Study on Stress Analysis and Optimization of Supports and Hangers in High-Temperature and High-Pressure Pipelines

High-temperature and high-pressure pipelines are widely used in thermal power generation. During operation, they are subjected to various loads such as internal pressure, self-weight, thermal expansion and contraction, and additional endpoint displacements, which can easily lead to stress concentration, fatigue damage, and other problems that affect the safe and stable operation of the system. In this study, a high-temperature and high-pressure steam pipeline in a power plant is taken as the research object, and finite element method is employed to conduct numerical analysis for evaluating the primary and secondary stresses in the pipeline. To address the issue of unreasonable stress distribution, an optimized layout and adjustment scheme for supports and hangers is proposed. This work provides important theoretical basis and practical guidance for the stress analysis and design of high-temperature and high-pressure pipelines.