DEVICE FOR TRAPPING MIGRATING BODIES WITHIN THE SECONDARY CIRCUIT OF A STEAM GENERATOR

摘要

The trapping device makes it possible to trap migrating bodies within the steam generator or secondary circuit of a nuclear inst- allation. It is essentially constituted by grids (6) placed between the upper part of the tube nest envelope (10) and the pressure envelope (7) of the steam generator. The size of the meshes of said grids is such that it is impossible for objects liable to jam between the tubes of the tube nest of the primary circuit to pass through. Application to the steam generator of a pressurized nuclear reactor.