Method, device and equipment for monitoring abnormality of neutron fluence rate in reactor

Abstract

The application discloses a reactor neutron fluence rate anomaly monitoring method, device and equipment, and relates to the technical field of nuclear power plants. The method comprises the following steps: performing gamma background deduction processing on each obtained neutron fluence rate data; performing real-time analysis on the neutron count change rate according to the processed neutron fluence rate data of the neutron detector, so as to obtain the neutron count change rate corresponding to the neutron detector; determining the count rate correlation coefficient of two adjacent neutron detectors according to the processed neutron fluence rate data of the two adjacent neutron detectors; determining an anomaly monitoring result according to each processed neutron fluence rate data, the neutron count change rate corresponding to each neutron detector and the count rate correlation coefficient of any two adjacent neutron detectors; and determining a target alarm mode according to the anomaly monitoring result. In the application, the monitoring result can be determined according to the neutron fluence rate data, the hardware structure does not need to be changed, the monitoring result is more accurate, and the reliability of the detector system is improved.

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