| 锅炉导汽管材质状态和蠕变剩余寿命评估 |
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| 引用本文： | 席与珩,刘丽梅,崔雄华,郑坊平.锅炉导汽管材质状态和蠕变剩余寿命评估[J].热力发电,2011,40(8). |
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| 作者姓名： | 席与珩 刘丽梅 崔雄华 郑坊平 |
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| 作者单位： | 1. 神华国华北京热电分公司,北京,100025
2. 西安热工研究院有限公司,陕西西安,710032 |
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| 摘 要： | 通过宏观检查、超声探伤、磁粉探伤、金相检验、硬度测量、内壁氧化层厚度和金属层厚度测量等一系列的无损检验方法,对某电厂的锅炉导汽管进行了材质状态评估和蠕变剩余寿命估算。评估结果表明:所抽检的7根导汽管弯头显微组织均有一定程度的老化,硬度值正常,未见明显性能劣化,在目前运行条件下可安全运行两个大修期以上。
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| 关 键 词： | 无损检验 导汽管 材质状态 蠕变 剩余寿命 |
EVALUATION OF MATERIAL STATE AND CREEP RESIDUAL LIFE OF STEAM CONDUIT FOR BOILERS |
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| XI Yuheng,LIU Limei,CUI Xionghua,ZHENG Fangping.EVALUATION OF MATERIAL STATE AND CREEP RESIDUAL LIFE OF STEAM CONDUIT FOR BOILERS[J].Thermal Power Generation,2011,40(8). |
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| Authors: | XI Yuheng LIU Limei CUI Xionghua ZHENG Fangping |
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| Affiliation: | XI Yuheng1,LIU Limei1,CUI Xionghua2,ZHENG Fangping21.Beijing Thermal Power Branch Company under Shenhua Guohua Electric Power Corp,Beijing 100025,PRC2.Xi'an Thermal Power Research Institute Co Ltd,Xi'an 710032,SHaanxi Province,PRC |
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| Abstract: | Through a series of nondestructive methods,such as macroscopic inspection,ultrasonic flaw detection,magnetic particle test,metallographic examination,hardness measurement,and thickness measurement of internal oxide layer and metallic layer etc.,the material state and creep residual life of steam conduit for boilers in one power plant have been evaluated.The results of evaluation show that the selectively inspected elbows of seven steam conduits are aged to a certain extent,but the hardness is normal,and the... |
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| Keywords: | nondestructive inspection steam conduit material state creep residual life |
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