Eddy Current Testing of AVB Position
摘 要
蒸汽发生器在制造、安装和运行过程中, 防振条与U形热交换管的相对位置可能由于二次侧水流或者外力等作用而改变, 而失去防振作用。运用涡流检测的手段, 可以获得防振条与U形管相对位置的信息。水压后防振条位置的检测, 可作为蒸发器运行过程中监测的基准, 对整个蒸发器的安全有效运行起着重要的作用。该方法解决了已完工的蒸汽发生器防振条与换热管相对位置如何测量的问题。
Abstract
In the process of manufacture, installation and operation of steam generator, the relative position of the anti-vibration bar and the U-shaped heat exchange tubes may be changed due to secondary side effect such as water or outside force, thus possibly resulting to its failure. Using eddy current testing method, the information on the relative location of anti-vibration bar of U-tube can be obtained. The position detection of anti-vibration bar after the hydraulic test can be used as a benchmark during the steam generator operation, which may play an important role for the safe and effective operation of the evaporator. The application of this type of eddy current testing has solved the problem of how to measure the relative position of heat exchange tube and anti-vibration bar for the existing steam generators.
中图分类号 TG115.28 DOI 10.11973/wsjc201610005
所属栏目 2016远东无损检测新技术论坛论文精选
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收稿日期 2016/6/22
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备注代勤龙(1982-), 男, 本科, 工程师,主要从事核岛主设备蒸汽发生器和反应堆压力容器制造过程中的无损检测。
引用该论文: DAI Qin-long. Eddy Current Testing of AVB Position[J]. Nondestructive Testing, 2016, 38(10): 18~20
代勤龙. 防振条位置的涡流检测[J]. 无损检测, 2016, 38(10): 18~20
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参考文献
【1】《国防科技工业污水检测 资格鉴定与认证培训教材》编审委员会编.涡流检测[M].北京: 机械工业出版社, 2004.
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