PIPELINE DUCT THROUGH TWO OR MORE WALLS OF AN AXIAL COMPRESSOR OF A GAS TURBINE

摘要

A pipeline duct through a discharge opening (17) of a vane support housing { 1) and an opening (6) in an outer wall (3) of a compressor housing of a gas turbine. The upper part of the pipe (2) is firmly clamped with a flange (14) and seals (7 ) between the bleeder connection (15) and the outer wall (3) by means of fastening elements (16). The lower part of the pipe (2) is sealed by a piston ring (8). The piston ri ng (8) is guided by two fastening rings (9, 10), which are mounted in the vane support housing (1) by fastening elements (16). The fastening rings (9, 10) make possible a free movement of the pipe (2) and the housing (3) in relation to the vane support (1) in the horizontal direction due to their free spaces (11, 12, 13).