STATIONARY BLADE STRUCTURE OF AXIAL FLOW COMPRESSOR

摘要

PROBLEM TO BE SOLVED: To provide a stationary blade structure of axial flow compressor capable of reducing generated heat that could be produced through friction between secondary air and a wall part of a rotor.;SOLUTION: This invention relates to a stationary blade structure 20 of a compressor 3 in which several stationary blades 12 arranged at an outer casing 10 and several rotor blades 11 fixed to a shaft part 6 of a rotor R rotated around a rotating axis line L1 are alternatively arranged in a direction of the rotating axis line L1. Inner end parts of the stationary blades 12 at a side of rotating axis line L1 of the stationary blades have an annular shroud 17 fixed thereto, an inner peripheral side of the shroud 17 is provided with a honeycomb seal 18. The honeycomb seal 18 oppositely faces against seal teeth 16 arranged at an outer peripheral surface of a shaft part 6, and several flow circulating device 21 including surfaces 21a, 21b oblique in a rotating direction of the rotor R in reference to a direction of the rotating axis line L1 are arranged in a peripheral direction at an end part of the downstream side of the outer peripheral surface of the shroud 17 with the direction of the rotating axis line L1 being applied as a reference line.;SELECTED DRAWING: Figure 2;COPYRIGHT: (C)2018,JPO&INPIT