| 摘要 |
PROBLEM TO BE SOLVED: To provide an efficient cooling flow by improvement and/or interaction of both the swirl ratio and the pressure drop.SOLUTION: Embodiments of the invention relate generally to rotor cooling and, more specifically, to a stator member having at least one passage for delivery of cooling steam to a bucket root. In one embodiment, the invention provides a turbine comprising: a rotor including a first bucket root; and a stator member. The stator member has: a rotor bore within which at least a portion of the rotor is disposed; a facing end adjacent to the first bucket root of the rotor; a plurality of seals within the rotor bore for sealing the rotor, the plurality of seals including a first seal near the facing end and a second seal adjacent to the first seal; and a plurality of passages, each extending from a surface of the rotor bore at a point between the first seal and the second seal and extending through the facing end. |
