Turbine shell jacking pockets
AssigneeGeneral Electric Company
InventorsAndrew John Tomko, Dennis William Roberts, Jack Nolan
Life of this patent
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Abstract
A system and method for easily separating upper and lower turbine shells involves forming elongated access pockets vertically aligned across the upper and lower turbine shells and at multiple locations on the turbine shells. Telescoping hydraulic rams are placed into elongated access pockets at each of the multiple locations for lifting the upper shell off of the lower shell. The telescoping hydraulic rams are connected to a controller for controlling each of the rams to operate in parallel with the other rams. Once the turbine shells are separated the upper turbine shell can be removed by conventional block and rigging.
Claims18
A method of separating upper and lower turbine shells from each other, the method comprising:
- forming vertically aligned access pockets at multiple locations in the upper and lower turbine shells;
- placing a telescoping hydraulic ram within each vertically aligned access pocket;
- and
- extending the telescoping hydraulic rams so as to separate the upper and lower turbine shells.
A system for separating a turbine shell, the system comprising:
- an upper turbine shell having access pockets located at multiple locations;
- a lower turbine shell having access pockets vertically aligned with said access pockets of said upper turbine shell;
- and
- a telescoping hydraulic ram disposed within each vertically aligned access pocket of said upper and lower turbine shells,
- wherein the telescoping hydraulic rams are extended so as to separate the upper and lower turbine shells.
A lifting system for a turbine having upper and lower turbine shells, said system including vertically aligned access pockets at multiple locations in the upper and lower turbine shells and a synchronizing lifting system in conjunction with telescoping hydraulic rams disposed within said vertically aligned access pockets for diminishing the mechanical gauling that typically occurs on internal radial fits during separation of the upper and lower turbine shells.
Dependencies are inferred from the claim text.