METHOD TO DIAGNOSE RESONANT PULSATIONS OF PRESSURE IN HIGH-POWER CHANNEL-TYPE REACTOR DISCHARGE CIRCUIT BY MEANS OF PRIMARY CONVERTER OF BALL FLOW METER STORM-32M Russian patent published in 2012 - IPC G21C17/32 

FIELD: power engineering.

SUBSTANCE: invention relates to methods for measurement of pressure dynamics in a high-power channel-type reactor discharge circuit in different modes of its operation, in particular, to methods for diagnostics of resonant pulsations of pressure in the discharge circuit of the high-power channel-type reactor. In systems with control facilities connected to inputs of a computer, the measurement and recording devices connected with more than one parallel connected working channel of fluid agents displacement, take and record readings of measurement devices, besides, for fuel channels of the high-power channel-type reactor arranged in one distribution group header, during registration of readings of measurement devices, records of EMF of magnetic induction converters (MIC) are made in the primary converter of the ball flow meter STORM-32M, for the time interval, in which EMF of selected channels MIC was recorded. Data on total feed of a reactor coolant pump is summed and compared in the appropriate half of the reactor and by total flow of water for this half. Time rows of EMF are graphically processed in MIC of selected process channels, with simultaneous detection of 1/f -noise (flicker-noise) and the fact of total water flow reduction, the fact of resonant oscillations detection in the discharge circuit of the high-power channel-type reactor is registered, and operational parameters are corrected: flow rate, water pressure, reactor capacity.

EFFECT: improving nuclear power plant operation reliability and safety.

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