ABHEBUNGS UND ZURÜCKHALTUNGSSYSTEM FÜR MODULÄREN DRUCKBEHÄLTER

摘要

An unheading and containment system for unheading and heading a pressure vessel includes an unheading apparatus for removing a cover from a pressure vessel in an unheading operation and a modular enclosure mechanism to substantially enclose the cover during the unheading operation. The unheading apparatus includes a cover removably secured to the pressure vessel, a lock plate cooperating with the cover, and a cover moving mechanism capable of moving the cover vertically and laterally.