SYSTEME DE VERROUILLAGE MECANIQUE DE TRAPPE, NOTAMMENT POUR CUVE SOUS PRESSION DE GENERATEUR DE VAPEUR

摘要

A locking mechanism for securing hatches internal to a steam generator that is made up of only mechanical locking elements with fully captured moving parts. The mechanism employs a locking pin with redundant mechanisms to secure the pin in the closed position. The moving parts of the device can be attached directly to a removable hatch so that installation and repairs that may be required can be performed outside of the pressure vessel of the steam generator.