METHOD improve the reliability and efficiency of the axial compressor of a stationary gas turbine INSTALLATION

摘要

1. A method for improving the reliability and efficiency of the axial compressor of a stationary gas turbine unit by application of thermal sealing burnished coatings on the stator and rotor elements of the compressor as a radial sealing gap between the ends of the pen of rotor blades of the rotor wheel and the stator of the compressor, as well as the gaps between the ends of the guide vanes pen The stator and rotor of the compressor, wherein the sealing coating is applied in two layers, a first layer is applied as the adhesive layer second nickel-base thickness of 0.1 to 0.2 mm, or Ni-Al system, a Ni-Cr system as well as a second burnished layer coated thickness of from 0.5 to 6 mm from one of the following materials: either based on aluminum, or based on copper-nickel alloy or a nickel-based or nickel-based alloy flint, with additions of sodium silicate and a solid lubricant, wherein a solid lubricant taking boron nitride or graphite or smes.2. A method according to claim 1, characterized in that the thermal spray coating method using a plasma or flame napylenie.3. A method according to claim 1, characterized in that, depending on the operating temperature of the compressor for applying the sealing layer, the following materials: aluminum base - to a temperature of 450 ° C, based on copper-nickel alloy - to a temperature of 650 ° C, based on nickel or nickel-alloy flint - to a temperature of 750 ° C.4. A method according to claim 2, characterized in that, depending on the operating temperature of the compressor for applying the sealing layer, the following materials: aluminum base - to those