| 在役电站锅炉导汽管组织状态评估与剩余寿命预测 |
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| 引用本文： | 高宏波,谢守明,赵杰,王来,韩双起,王富岗.在役电站锅炉导汽管组织状态评估与剩余寿命预测[J].热力发电,2004,33(6):71-74. |
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| 作者姓名： | 高宏波 谢守明 赵杰 王来 韩双起 王富岗 |
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| 作者单位： | 大连理工大学,辽宁,大连,116024 |
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| 摘 要： | 对某热电厂已运行108835h的锅炉导汽管组织状态和力学性能进行了试验分析。金相分析表明，在役的导汽管材料组织中，珠光体已经完全球化，但材料的常温力学性能仍符合标准。通过对持久温度试验数据的线性拟合与平行外推，预测其剩余寿命至少仍有70000h。
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| 关 键 词： | 锅炉 12Cr1MoV钢 导汽管 金相分析 剩余寿命 预测 |
| 文章编号： | 1002-3364(2004)06-0071-04 |
MICROSTRUCTURE STATE EVALUATION AND RESIDUAL LIFE PREDICTION FOR STEAM CONDUIT OF BOILERS IN SERVICE |
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| GAO Hongbo,XIE Shouming,ZHAO Jie.MICROSTRUCTURE STATE EVALUATION AND RESIDUAL LIFE PREDICTION FOR STEAM CONDUIT OF BOILERS IN SERVICE[J].Thermal Power Generation,2004,33(6):71-74. |
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| Authors: | GAO Hongbo XIE Shouming ZHAO Jie |
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| Abstract: | Through tests, the microstructure state and mechnical properties of steam conduit for a boiler which had been operating for 108835 hours in a thermal power plant have been experimentally analysed. Metallurgical analysis shows that the pearlite in material microstructure of the steam conduit in service has been completely spherodized, but the mechanical property of material at room temperature being still in conformity with the standard. Through linear fit and parallel extropolation of test data for enduring strength, the residual life of said steam conduit has been predicted still to be no less than 70000 hours. |
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| Keywords: | boiler l 12CrIMoV steel steam conduit metallurgical analysis residual life prediction |
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