基于修正θ法的长期服役10CrMo910钢主蒸汽管道剩余寿命预测

摘要

Lager number of equipment usually works under the situation of high temperature and high pressure in petrochemical industry, power generation and other industry. Ensure the safety work of equipment is important for the protection of personnel and property safety. The creep properties of heat - resistant steel 10CrMo910 was researched, which is widely used in main steam pipe of power plants. For the long - service main steam pipe, using modified θ projection concept analysis and prediction of the residual life of the steel used more than 200000 hours. It plays a guidance role on safety performance and normal operation for the pipeline which close to the design life.%在石油化工、火力发电等行业,大量的设备承受较高的温度和复杂载荷作用,确保其安全运行对于保障人员和财产安全有重要意义.对广泛应用于电厂主蒸汽管道的耐热钢10CrMo910的蠕变性能进行了研究,针对长期服役的主蒸汽管道,应用修正θ法对服役20余万h的钢材进行了分析及剩余寿命预测,对于寿命后期管道继续服役的安全性和操作有一定的指导意义.