Abstract:
A turbomachine rotor blade milling machine system includes a fixture having a body including first and second opposing surfaces and a slot. The fixture is configured and disposed to connect with first and second rotor blade sections mounted in a rotor wheel. A mounting system includes at least one mounting element coupled to one of the first and second opposing surfaces of the body at the slot. A milling machine is coupled to the one of the first and second opposing surfaces through the at least one mounting element. The milling machine includes a cutter and is configured and disposed to form an opening extending axially through a dovetail portion of a third rotor blade section arranged between the first and second rotor blade sections.
Abstract:
An apparatus for cleaning an inner surface of a slot includes a first block segment that has an outer perimeter that conforms to and fits inside the inner surface of the slot. A first cleaning pad is connected to the first block segment and extends beyond at least a portion of the outer perimeter of the first block segment.
Abstract:
Various embodiments include alignment apparatuses and associated methods for use on a turbine (e.g., a gas turbine). In various particular embodiments, an apparatus for aligning an unfixed inlet guide vane (IGV) adjacent a fixed IGV in a gas turbine. In some cases the apparatus includes: a first wedge member for interfacing with the fixed IGV; a second wedge member movably coupled with the first wedge member, the second wedge member for interfacing with the unfixed IGV; and an adjustment apparatus coupled to the first wedge member and the second wedge member, the adjustment apparatus for modifying a position of the second wedge member relative to the first wedge member to actuate movement of the unfixed IGV relative to the fixed IGV.
Abstract:
A fixture for restraining a wheel of a turbomachine is provided. The fixture includes a dovetail section adapted for insertion into a dovetail slot of the wheel, and a mounting section located adjacent to, or formed integrally with, the dovetail section. At least one coupling ring is attached to a top of the mounting section. The at least one coupling ring is adapted to be secured to a stationary anchoring point via a restraint.
Abstract:
A system for repairing dovetail slots includes a slot adaptor having a body configured and disposed to nest between first and second side walls of a dovetail slot, and a tool holder configured to be coupled with the slot adaptor. The tool holder includes a tool guidance system configured and disposed to direct a tool into contact with one of the first and second side walls of the dovetail slot. A cutting tool is mounted in the tool holder. The cutting tool includes a tapered surface configured and disposed to form a tapered recess in the one of the first and second side walls of the dovetail slot.
Abstract:
Various embodiments include alignment apparatuses and associated methods for use on a turbine (e.g., a gas turbine). In various particular embodiments, an apparatus for aligning an unfixed inlet guide vane (IGV) adjacent a fixed IGV in a gas turbine. In some cases the apparatus includes: a first wedge member for interfacing with the fixed IGV; a second wedge member movably coupled with the first wedge member, the second wedge member for interfacing with the unfixed IGV; and an adjustment apparatus coupled to the first wedge member and the second wedge member, the adjustment apparatus for modifying a position of the second wedge member relative to the first wedge member to actuate movement of the unfixed IGV relative to the fixed IGV.
Abstract:
A system for modifying a slot in a rotor includes a drill, a clamp connected to the drill and configured to engage with an interior surface of the slot, and means for supporting the drill from a stationary platform adjacent to the rotor. A method for modifying a slot in a rotor includes connecting a coupling to a stationary platform adjacent to the rotor, connecting a drill to the coupling, and locating the drill proximate to the slot. The method further includes inserting a clamp into the slot, engaging the clamp with an interior surface of the slot, and operating the drill to create a cavity in the slot.
Abstract:
A fixture for restraining a wheel of a turbomachine is provided. The fixture includes a dovetail section adapted for insertion into a dovetail slot of the wheel, and a mounting section located adjacent to, or formed integrally with, the dovetail section. At least one coupling ring is attached to a top of the mounting section. The at least one coupling ring is adapted to be secured to a stationary anchoring point via a restraint.
Abstract:
A fixture for restraining a wheel of a turbomachine has a dovetail section adapted for insertion into a dovetail slot of the wheel. A mounting section is located adjacent to, or formed integrally with, the dovetail section. At least one coupling ring is attached to the mounting section, and the coupling ring is adapted to be secured to a stationary anchoring point via a restraint. The stationary anchoring point includes at least one counterbore assembly having a coupling ring attached thereto. The counterbore assembly is adapted to be secured to a stationary structure. The stationary structure may be a shell, a flange or a casing of the turbomachine.