Installation and procedures for intervention in a main coolant pump of a nuclear reactor

摘要

The supporting column (21) carries the inspection or repair device (30) and can be positioned with respect to the axis of revolution of the volute (5) using 3 superposed plates (22,23,24) that can rotate with respect to each other about different axes. The column (21) can be displaced along its axis (18) using a rack and pinion arrangement (28,46,47).