Systems and methods for preventing liberation and damage to airfoils in a gas turbine
AssigneeGE Infrastructure Technology LLC
InventorsJunyoung PARK, Jeffrey M. BREZNAK, Jon C. SCHAEFFER
Life of this patent
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Abstract
The present application provides a replaceable galvanic protection anode system for preventing and limiting the effects of liberation and damage to airfoils in a gas turbine, wherein turbine components are covered by a sacrificial material. The galvanic protection layer of the replaceable anodes may include a sacrificial material, such as aluminum, wherein the material provides corrosion resistance to the substrate. Additionally, the galvanic protection layer may include a sacrificial conductive material insert for increasing the conductivity of the sacrificial material and further improve the corrosion resistance of the replaceable anodes.
Claims20
A turbine protection system for reducing the effects of corrosion and turbine damage, comprising:
- at least one component engaged with a compressor of the turbine, wherein the at least one component comprises an airfoil, a platform that defines a radially inner boundary of a gas path through the compressor, a dovetail, and a base;
- and
- one or more anodes attached to the component, wherein each of the one or more anodes comprises a sacrificial material configured to provide galvanic protection against corrosion.
A method for reducing corrosion on gas turbine components, the method comprising:
- attaching a sacrificial material to a surface of a component engaged with a compressor of the gas turbine, wherein the component comprises an airfoil comprising a platform that defines a radially inner boundary of a gas path through a turbine, a dovetail, and a base, and
- attaching an anode to the sacrificial material.
Dependencies are inferred from the claim text.