In-reactor abnormal component online positioning method based on neutron noise analysis

The invention discloses an in-reactor abnormal component online positioning method based on neutron noise analysis, and the method comprises the steps: carrying out the online analysis through employing a detection signal of an existing in-reactor neutron detector, and does not need to additionally...

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Bibliographic Details
Main Authors WANG JIAN, YANG WANKUI, YUAN BAOXIN, HUANG HUAN, ZHENG JIE, ZENG HERONG
Format Patent
LanguageChinese
English
Published 01.08.2023
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
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Summary:The invention discloses an in-reactor abnormal component online positioning method based on neutron noise analysis, and the method comprises the steps: carrying out the online analysis through employing a detection signal of an existing in-reactor neutron detector, and does not need to additionally add a detector; in combination with neutron noise theoretical frequency spectrums corresponding to all parts obtained through calculation for high-risk parts possibly having loosening, falling off and local boiling in a reactor in advance, directivity positioning of the in-pile abnormal parts is given in real time based on an in-pile abnormal part positioning algorithm, so that early warning information is provided for operation monitoring and fault diagnosis of the reactor. And the method has remarkable progressive significance for safe operation of the reactor and construction of a diagnostic system. 本发明公开了一种基于中子噪声分析的堆内异常部件在线定位方法，该方法利用堆内已有的中子探测器的探测信号在线作分析，不需要额外增加探测器，结合事先针对反应堆内存在松动脱落和局部沸腾可能存在的高危部件计算得到的各部件对应的中子噪声理论
Bibliography:Application Number: CN202310487071