VERIFICATION OF INSPECTION METHOD USED TO PREDICT PREMATURE FAILURE OF PRIMARY REFORMER TUBES

机译：预测主重整管过早失效的检查方法的验证

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Initial inspection techniques to monitor onset of creep in primary reformer tubes proved to be time consuming and inaccurate. A tube crawler technique using a combination of continuous measurements of the tube outer diameter, together with continuous eddy current examination of the tube wall was used to evaluate tube condition in two primary reformers during a schedule outage. Rigorous metallurgical examination was performed on 27 tubes removed from one of the reformers which had been adjudged to be in an abnormal stage of creep deterioration, in order to check the degree of correlation of defect severity and location. The accuracy of this technique was validated with a high degree of confidence, and some conclusions were drawn relating to the geographical location of the defects in relation to burner location.

机译：监视初级重整管蠕变开始的初始检查技术被证明是耗时且不准确的。在计划停机期间，使用了结合了管外径连续测量值和管壁连续涡流检查技术的管履带技术，以评估两个主重整炉中的管状况。对从一台被确定为处于蠕变恶化异常阶段的重整炉中取出的27个试管进行了严格的冶金检查，以检查缺陷严重程度和位置的相关程度。该技术的准确性得到了高度的可信度验证，并且得出了与缺陷相对于燃烧器位置的地理位置有关的一些结论。

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《Sixth International Colloquium on Ageing of Materials and Methods for the Assessment of Lifetimes of Engineering Plant, Apr 30-May 4, 2001, Cape Town/South Africa》|2001年|p.79-93|共15页
会议地点 South Africa(ZA);South Africa(ZA)
作者
F Mahlangu;
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Mossgas, Private Bag X14, Mossel Bay - 6500, South Africa;

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正文语种 eng
中图分类机械、仪表工业;
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VERIFICATION OF INSPECTION METHOD USED TO PREDICT PREMATURE FAILURE OF PRIMARY REFORMER TUBES

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