system for the introduction of kuehlmittel in open fluessigkeitsgekuehlte turbine laufschaufeln

摘要

An improved coolant distribution system is described for the introduction of liquid coolant into the open-circuit cooling channels of a turbine bucket. Liquid coolant is transported by centrifugal force from the gutter to a pool located at the underside of the platform, the liquid entering the pool beneath the surface thereof. At least one weir is formed in the pool periphery for controlled distribution of the coolant from the pool to cooling channels in one or more turbine buckets.