GAS TURBINE AND METHOD FOR OPERATING THE GAS TURBINE

摘要

A gas turbine includes an intake tract and a compressor having a compressor flow channel. The compressor further includes an inlet guide vane row positioned in the compressor flow channel having inlet guide vanes that can be adjusted. The gas turbine has an icing sensor unit having at least one sensor arranged between a first compressor blade row and a first compressor guide vane row. The first compressor blade row is thereby arranged in the compressor flow channel directly downstream of the inlet guide vane row, and the first compressor guide vane row is arranged directly downstream of the first compressor blade row. A method detects an imminent icing of the compressor, and the compressor is safeguarded therefrom such that at least inlet guide vanes of the inlet guide vane row are adjusted such that the acceleration of an intake air mass flow is reduced.

主权项

1. A gas turbine comprising an intake section and a compressor having a compressor flow duct, wherein the compressor has an inlet guide blade row with adjustable inlet guide blades, which is positioned in the compressor flow duct, the gas turbine comprising:
an icing sensor unit comprising at least one sensor arranged between a first compressor rotor blade row and a first compressor guide blade row, wherein the first compressor rotor blade row is arranged immediately downstream of the inlet guide blade row and the first compressor guide blade row is arranged immediately downstream of the first compressor rotor blade row in the compressor flow duct, wherein the icing sensor unit has at least one air humidity sensor and, in addition, at least one pressure sensor and one temperature sensor, which are both arranged between the first compressor rotor blade row and the first compressor guide blade row.