COOLING PASSAGE STRUCTURE OF TURBINE BLADE PLATFORM

摘要

A cooling passage structure of a turbine blade platform is provided to improve the cooling efficiency of the platform by installing a cooling passage including at least two introduction openings. A cooling passage structure includes at least two introduction openings(8), at least one discharge opening(10), and at least one cooling passage(12). The introduction openings are provided on one side of the lower end surface of the platform and a cooling fluid is introduced into the introduction openings. The discharge opening is provided on one side end surface of the platform and the cooling fluid is discharged through the discharge opening. The cooling passage is located in the interior of the platform and one side thereof is installed in the introduction opening. The other side of the cooling passage is installed in the discharge opening.