Flame detector lens maintenance system

A system, comprising:

• a gas turbine (GT) system including:
• a compressor, a combustor assembly, and a gas turbine operatively coupled to the compressor and the combustor assembly, the combustor assembly and gas turbine each including a surrounding casing;
• an enclosure enclosing the GT system;
• a flame detector operatively coupled to the enclosure;
• a maintenance system for the flame detector, the maintenance system including:
• a first conduit having an inlet at an exterior of the enclosure and an outlet at an interior of the enclosure, the outlet adjacent the flame detector;
• a source of air;
• and
• a solenoid valve fluidly coupling the inlet of the first conduit and the source of air,
• wherein the solenoid valve is configured to deliver a compressed air from the source of air through the outlet of the first conduit onto a surface of the flame detector, thereby removing contaminants from the surface and/or cooling the surface;
• and
• a controller operatively coupled to the flame detector and the solenoid valve, wherein the controller operates the solenoid valve to deliver the compressed air from the outlet of the first conduit onto the surface of the flame detector at a prescribed time interval based on a fuel type.

A system, comprising:

• a gas turbine (GT) system including:
• a compressor, a combustor assembly, and a gas turbine operatively coupled to the compressor and the combustor assembly, the combustor assembly and gas turbine each including a surrounding casing;
• an enclosure enclosing the GT system;
• a flame detector operatively coupled to the enclosure;
• and
• a maintenance system for the flame detector, the maintenance system including:
• a first conduit having an inlet at an exterior of the enclosure and an outlet at an interior of the enclosure, the outlet adjacent the flame detector;
• a source of air, wherein the source of air includes instrument air from a compressor within the enclosure;
• and
• a valve fluidly coupling the inlet of the first conduit and a second conduit, the second conduit being fluidly coupled to the source of air,
• wherein the valve is configured to deliver a compressed air from the source of air through the outlet of the first conduit onto a surface of the flame detector, thereby removing contaminants from the surface and/or cooling the surface.