MODULAR PRESSURE VESSEL UNHEADING AND CONTAINMENT SYSTEM

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 sunstantially enclose the cover during the unheading operation. The unheadin g apparatus includes a cover removably secured to the pressure vessel, a lock plate removably secured to the pressure vessel, a lock plate cooperating wit h the 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.