AXIAL FLOW COMPRESSOR, GAS TURBINE INCLUDING AXIAL FLOW COMPRESSOR, AND AXIAL FLOW COMPRESSOR REMODELING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an axial flow compressor relatively a few in restrictions at a time of changing a blade shape, blade attachment positions or the number of stages of stationary blades.SOLUTION: An axial flow compressor comprises: a rotor that is a rotary shaft; a plurality of rotor blades attached to the rotor; a compressor casing covering the rotor and the rotor blades; and a plurality of stationary blades attached to the compressor casing, a plurality of rotor blade rows each formed by arranging a plurality of rotor blades in a circumferential direction of the rotary shaft and a plurality of static blade rows each formed by arranging a plurality of static blades in the circumferential direction of the rotary shaft being arranged in an axial direction of the rotary shaft. A dovetail that is a base for supporting blade portions is provided in the stationary blades and two or more stationary blades belonging to the different stationary blade rows are attached to one dovetail groove formed in the compressor casing and extending in the circumferential direction of the rotary shaft for attaching the stationary blades by inserting the dovetail into the dovetail groove.