基于极值统计法的寿命评估方法的研究
Study on Servicing Life Assessment Based on Extreme Value Statistics
刘景明1
作者信息
摘要
空冷器换热管局部腐蚀深度的最大值是判断空冷器寿命的重要标志,检测出所有管束最大腐蚀深度的工作量大且难以实现.选择采用IRIS内旋转超声检测技术,随机抽取一定数量的管束进行最大腐蚀深度检测,对检测数据进行统计分析,建立极值统计模型,以便对空冷器管束的最大腐蚀深度进行预测,为空冷器管束使用剩余寿命评估提供参考.
Abstract
The maximum local corrosion depth of the air cooler's heat exchanger tube is an important sign to judge servicing life of the air cooler and detecting the maximum corrosion depth of all tube bundles be-comes difficult.IRIS internal rotation rotary ultrasonic testing technology was adopted to randomly select some tube bundles for maximum corrosion depth detection,including applying statistical analysis to the test data and establishing extreme value's statistical model to predict the maximum corrosion depth of the air cooler tube bundle and provide a reference for the residual life evaluation of the air cooler tube bundle.
关键词
空冷器/换热器/局部腐蚀检测/旋转超声/IRISKey words
air cooler/heat exchanger/local corrosion depth/rotary ultrasonic testing/IRIS引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据