METHOD OF MONITORING CONDITION OF GRAPHITE MATRIX OF RBMK REACTOR Russian patent published in 2017 - IPC G21C17/00 

FIELD: power industry.

SUBSTANCE: in the claimed method, a survey of a select number of reactor cells is performed by measuring the amount of the deflection channel in them, comparing it with the maximum permissible value, and deciding whether to continue operating the reactor. At the stage of operation corresponding to the accelerated forming of the masonry, the cells located along the rule inside the ring (19-21) rows and also inside the ring (13-15) series from the center of the reactor are examined. According to the obtained data, the location of the regions of cells with the largest values of the deflection arrows is determined. The cells of these areas are examined after which the time is determined before the next survey or until the reactor is shut down for repair. At the same time, it is ensured that the rule that any ray drawn from the center of the reactor intersects at least one cell in each of the rings is ensured.

EFFECT: increasing the timeliness and accuracy of the identification of the cell with the maximum value of the deflection arrow while reducing the number of cells to be examined.

4 cl, 1 dwg