Method for loading nuclear fuel assemblies inside a nuclear plant reactor core and device therefor

摘要

A method for loading nuclear fuel assemblies inside a nuclear plant reactor core includes positioning at a second diagonal of a core plate, a triple guide module using an auxiliary mast of a loading machine or of a handling member designed therefor. Then, at least at each of the next diagonals of the core plate, positioning a guide module consisting of six consecutive guide tiles diagonally mounted so as to enable one to seven fuel assemblies to be installed one by one. Then, at an angle opposite to the initial angle for positioning the assemblies, positioning at the penultimate diagonal, the triple guide module, and two single-unit guide modules, so as to enable six fuel assemblies to be installed at the penultimate diagonal. Then, positioning the two single-unit guide modules at the last diagonal, so as to enable five fuel assemblies to be installed at the penultimate diagonal; and finally, after removing the single-unit guide modules, installing the last two nuclear fuel assemblies in the two remaining locations.