INTAKE AIR COOLING SYSTEM

摘要

PROBLEM TO BE SOLVED: To collect drain that cannot be collected in a drain pan of a cooling coil (cooling portion).SOLUTION: An intake air cooling system 100 of a gas turbine 28 includes: an intake air duct 12 introducing intake air taken in from an intake air inlet 22 to a compressor 14; a cooling portion 26 provided in the intake air duct 12, and cooling the intake air by heat exchange with a cooling medium introduced from an outside; a convex stepped portion 13 formed into a convex shape relative to bottom surfaces 12a1 and 12a2 of the intake air duct 12 provided on a wake flow side of the cooling portion 26; and drain hole portions 110 that are formed in the bottom surfaces 12a1 and 12a2 of the intake air duct 12 provided on the wake flow side of the cooling portion 26, and that can discharge drain generated on a surface of the cooling portion 26 and dropping to an outside of the intake air duct 12.