10MW高温气冷堆电涡流碎球分选装置的研制

Development of the Device of Separating Failed Spheres with Electromagnetic Eddy Current in HTR 10

描述了一种新的利用电涡流进行石墨球表面缺陷检测的在线无损检测方法。提出了一种新的球面展开方法——摩擦旋转法， 它被用于１０ＭＷ 高温气冷堆。与机械方法的同类设备比较， 该装置不但体积小， 而且重量轻， 在实验运行中性能稳定可靠， 能准确分选出表面损伤的石墨球，

A new method of on line nondestructive testing for the flaws on graphite spheres surface with electromagnetic eddy current is stated. A new friction rotating method which can find the location of all flaws is presented and is used on 10MW High Temperature Gas Cooled Reactor(HTR 10). Compared with the old devices in mechanical method, the device of separating failed spheres is not only small in size but also light in weight. In the experimental operation, the device performs stably, reliably and satisfactorily. It can separate the failed ones from all spheres exactly.