초록 ▼

A system and method for repairing turbine vane attachment systems in a turbine engine. In at least one embodiment, the invention may be directed to a system and method for repairing wear on a diaphragm hook fit configured to attach diaphragm airfoils, such as stationary turbine vanes, to a combustio

A system and method for repairing turbine vane attachment systems in a turbine engine. In at least one embodiment, the invention may be directed to a system and method for repairing wear on a diaphragm hook fit configured to attach diaphragm airfoils, such as stationary turbine vanes, to a combustion turbine case. The restoration system may be formed from a carriage assembly having an assortment of material processing implements usable to build up material in the worn locations of the turbine vane attachment system to reestablish a diaphragm hook fit within the specified tolerances. The restoration system may be configured so that the restoration process may occur without removing a rotor assembly, which can reduce the repair time by about two weeks. Thus, use of the restoration system can result in a significant time and cost savings.

대표청구항 ▼

I claim: 1. A method of repairing a turbine vane attachment system, comprising:attaching a generally curved track to a combustion turbine case between the combustion turbine case and a rotor assembly without removing the rotor assembly;attaching at least one movable carriage assembly movably coupled

I claim: 1. A method of repairing a turbine vane attachment system, comprising:attaching a generally curved track to a combustion turbine case between the combustion turbine case and a rotor assembly without removing the rotor assembly;attaching at least one movable carriage assembly movably coupled to the generally curved track, wherein the at least one movable carriage assembly includes at least one component drive system comprising a spindle coupled to the movable carriage and adapted to receive material processing implements for restoring a hook fit of the turbine vane attachment system, a spindle drive device in communication with the at least one spindle that is configured to rotate the spindle, a milling cutter coupled to the spindle for removing material from a hook fit of the turbine vane attachment system, and a weld head attached to the at least one moveable carriage assembly;positioning the milling cutter in contact with a worn portion of a turbine vane attachment system;rotating the milling cutter to prepare the worn portion of the turbine vane attachment system for material addition;adding material to the worn portion of the turbine vane attachment system using the weld head;rotating the milling cutter to remove some of the material added to the turbine vane attachment system to place the turbine vane attachment system within designed tolerances.