| 天然气加热炉管腐蚀剩余强度评价及剩余寿命预测 |
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| 引用本文： | 淡勇,李俊菀. 天然气加热炉管腐蚀剩余强度评价及剩余寿命预测[J]. 化工机械, 2009, 36(4): 373-376 |
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| 作者姓名： | 淡勇 李俊菀 |
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| 作者单位： | 西北大学,陕西省西安市,710069;西北大学,陕西省西安市,710069 |
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| 摘 要： | 利用一次检测数据得到的炉管腐蚀速率，基于ASME-B31G准则的极限承压方程，建立了求解腐蚀缺陷的极限尺寸模型；根据ASME-B31G准则及建立的腐蚀缺陷的极限尺寸求解模型，评价了含缺陷炉管的剩余强度，计算了炉管的最大允许腐蚀深度，并在此基础上预测了炉管的剩余寿命。综合评价结果显示，加热炉管可在现行条件下安全运行，且寿命可达12年。
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| 关 键 词： | 加热炉管 腐蚀缺陷 剩余强度 寿命预测 |
Residual Intensity Evaluation after Corrosion of the Heater Tubes for Natural Gas and Life-Span Prediction |
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| DAN Yong,LI Junwan. Residual Intensity Evaluation after Corrosion of the Heater Tubes for Natural Gas and Life-Span Prediction[J]. Chemical Engineering & Machinery, 2009, 36(4): 373-376 |
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| Authors: | DAN Yong LI Junwan |
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| Affiliation: | Northwest University;Xi'an;710049;Shaanxi;China |
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| Abstract: | A limit size model for solving corrosion defects was founded using the corrosion rate of the heater tubes obtained in inspected data based on the limit pressure equation of ASME-B31G.Based on the criteria of ASME-B31G and the founded limit size model of corrosion defects,the residual intensity of the heater tubes with defects was evaluated,the maximum tolerant corrosion depth of the heater tubes was calculated,and the life-span of the heater tubes was predicted.A comprehensive evaluation result shows that t... |
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| Keywords: | Heater Tube Corrosion Defect Residual Intensity Life-Span Prediction |
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