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Method and device for restoring the fall-time of at least one control cluster for regulating reactivity in the core of a light-water-cooled nuclear reactor
Method and device for restoring the fall-time of at least one control cluster for regulating reactivity in the core of a light-water-cooled nuclear reactor
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机译:恢复用于调节轻水冷核反应堆堆芯反应性的至少一个控制簇的下降时间的方法和装置
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摘要
After a nuclear reactor has been stopped and allowed to cool down following a period of operation, action is taken in a pool of the nuclear reactor on at least one guide tube of the activated upper internal equipment of the nuclear reactor to enlarge (21b, 21c) guide channels (16b, 16c) of the guide tube (8) in at least one continuous guidance zone. The enlargement is preferably performed by machining discontinuous cavities along the length of the guide channel (16b, 16c). Enlargement is preferably performed on the guide tube (8) in place within the upper internal equipment that has been placed on a storage stand in the reactor pool.
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机译:核反应堆停止运行并在一段时间运行后冷却后,在核反应堆的已激活上部内部设备的至少一根导管上的核反应堆池中采取措施,以扩大反应堆( 21 B> b I> ,21 B> c I>)引导通道( 16 B> b I>导管( 8 B>)的,16 B> c I>)在至少一个连续的引导区域中。优选地,通过沿着引导通道( 16 B> b I> ,16 B> c I> )。优选在已经放置在反应池中的储物架上的上部内部设备中就位的导管( 8 B>)上进行扩大。
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