COVERING DEVICE FOR POWER PLANT INCORPORATING CHAMBER MEMBER AND MULTIPLE-LOCKING CLOSING MEMBER; METHOD FOR LOCKING COVERING MEMBER Russian patent published in 2002 - IPC

FIELD: power plants incorporating chamber member and multiplelocking covering member. SUBSTANCE: covering device has primaryheader closing member disposed on first chamber and secured for removing by means of load-bearing coupling member designed for sealing inner space of primary chamber member; closing member is joined to chamber member by means of additional coupling members through sealed joint. Chamber member has adjustable-height intermediate members whereon closing member is lowered during their installation on chamber member. Method for locking covering device includes following operations: draw-out of adjustable-height intermediate members; installation of closing member onto intermediate members; partial lowering of intermediate members; turning of closing member relative to chamber member; complete lowering of intermediate members; forced jointing of closing member and chamber member. EFFECT: enhanced reliability. 19 cl, 5 dwg