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Lower nozzle for small debris filtration for nuclear reactor fuel assemblies
Lower nozzle for small debris filtration for nuclear reactor fuel assemblies
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机译:下部喷嘴,用于核反应堆燃料组件的小碎屑过滤
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摘要
A reduced pressure drop debris filter bottom nozzle for use in a fuel assembly of a nuclear reactor includes a plate member formed with a plurality of first flow holes and a plurality of second flow holes. The first flow holes are oblong in cross section and may be of an oval configuration. The first flow holes each have in cross section a major axis and a minor axis, the major axis being longer than the minor axis. The second flow holes are circular in cross section and may have a diameter substantially equal to the minor axis of the first flow holes. The bottom nozzle also features support ligaments that extend between the first flow holes and that are axially aligned with fuel rods within the fuel assembly.
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