Apparatus and method for baffle bolt repair

A system for repairing bolts disposed in baffle plates forming an internal support structure of a nuclear reactor vessel, comprising:

• a plurality of frames disposed adjacent one or more said baffle plates;
• and
• at each said frame of the plurality of frames,
• a tool disposed movably on the frame, the tool having an end configured to engage a first bolt disposed in a first baffle plate of the one or more baffle plates, and
• a first actuator operatively disposed between the tool and the frame so that actuation of the first actuator moves the tool with respect to the frame,
• wherein the frame and the tool are disposed with respect to the first baffle plate so that, upon actuating the first actuator to move the tool with respect to the frame to a position proximate a first bolt disposed in the first baffle plate, movement of at least one of the frame and the tool with respect to the first baffle plate engages the tool with the first bolt.

A system for repairing bolts disposed in baffle plates forming an internal support structure of a nuclear reactor vessel, comprising:

• a frame disposed adjacent one or more said baffle plates;
• a plurality of tools disposed movably on the frame, each said tool having an end configured to engage one or more bolts disposed in the baffle plates;
• and
• a plurality of actuators,
• wherein, for each said tool of the plurality of tools,
• at least one actuator of the plurality of actuators is operatively disposed between the tool and the frame so that actuation of the at least one actuator moves the tool with respect to the frame independently of each other tool of the plurality of tools, and
• the frame and the tool are disposed with respect to a first baffle plate of the one or more baffle plates so that, upon actuating a first actuator of the at least one actuator to move the tool with respect to the frame to a position proximate a first bolt disposed in the first baffle plate, movement of at least one of the frame and the tool with respect to the first baffle plate engages the tool with the first bolt.

A system for repairing bolts disposed in baffle plates forming an internal support structure of a nuclear reactor vessel, comprising

• a frame adjacent one or more said baffle plates;
• a tool disposed movably on the frame, the tool having an end configured to engage a first bolt disposed in a first baffle plate of the one or more baffle plates;
• a sub-frame disposed movably on the frame, wherein the tool is mounted on the sub-frame;
• a first actuator operatively disposed between the tool and the frame so that actuation of the first actuator moves the tool with respect to the frame;
• and
• a first conduit attached to the sub-frame and extending from the sub-frame to a position proximate a cable source,
• wherein the tool is attached to an end of a cable from the cable source so that insertion of the cable into the first conduit positions the tool at the sub-frame, and
• wherein the frame and the tool are disposed with respect to the first baffle plate so that, upon actuating the first actuator to move the tool with respect to the frame to a position proximate the first bolt, movement of at least one of the frame and the tool with respect to the first baffle plate engages the tool with the first bolt.

A system for repairing bolts disposed in baffle plates forming an internal support structure of a nuclear reactor vessel, comprising:

• a frame disposed adjacent one or more said baffle plates;
• a plurality of tools disposed on the frame, each tool having an end configured to engage a respective a first bolt disposed in a first baffle plate of the one or more baffle plates;
• a chuck disposed movably on the frame between a first position at which an operative end of the chuck opposes a first tool of the plurality of tools and actuation of the chuck causes the chuck to grip the first tool and a second position at which the first tool opposes the first bolt;
• and
• an actuator operably disposed between the chuck and the frame so that actuation of the actuator moves the chuck with respect to the frame, and
• wherein the frame and the chuck are disposed with respect to the first baffle plate so that upon actuating the actuator to move the chuck with respect to the frame to a position proximate the first bolt, movement of at least one of the frame and the chuck with respect to the first baffle plate brings the chuck to the second position.