Search - Issue 31 - FEATURES OF DIAGNOSTICS OF UNSUPPOSED THERMAL, VIBROACOUSTIC AND NEUTRON PROCESSES IN THE FIRST CONTOUR OF NUCLEAR REACTORS

FEATURES OF DIAGNOSTICS OF UNSUPPOSED THERMAL, VIBROACOUSTIC AND NEUTRON PROCESSES IN THE FIRST CONTOUR OF NUCLEAR REACTORS
DOI: https://doi.org/10.31717/1813-3584.18.31.1
Cover not present FEATURES OF DIAGNOSTICS OF UNSUPPOSED THERMAL, VIBROACOUSTIC AND NEUTRON PROCESSES IN THE FIRST CONTOUR OF NUCLEAR REACTORS
Category: Issue 31
Publication: 31
Summary

The approaches to pattern recognition of beginning moment of a vapour phase steady generating in PWR and LMFBR reactors. Identified current trends in the qualitative improvement of diagnostics technical condition of the real elements and nuclear reactor systems in order to ensure the possibility of extending their life. The complex of determining the physical, technical and diagnostic factors to the considered when developing a new generation of diagnostic systems for early automatic detection of the initial phases of potentially dangerous deviations of active zones heathydraulic modes parameters from regulated values was proposed. An analysis of the features of resonant vibratory processes in the primary circuit of VVER – 1000 reactor was performed. For examples of different contingencies considered reliable vibration of the water – water energetic reactors was reviewed. It is shown that the lack of deterministic approach effectiveness to the diagnostic of the current technical condition of VVER reactors elements and systems. The principles of and prospects for the creation of automatic computer diagnosis on the basis of the analysis of the spectral characteristics of the signals of standard parameters of vibration and heat – hydraulic processes sensor for early detection of potentially dangerous conditions. The well-known methods of diagnostic end control of a vapor phase generating process in water – cooled nuclear reactors were critical analysed. Besides the possibility of creating diagnostic system on the basis of intellectual software (i. e. created by methods of artificial intelligence) was reviewed.

Keywords: nuclear reactor, diagnostic systems, dangerous deviations of parameters, early automatic detection, reactor VVER, design elements, vibration condition.

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