TURBINE SHAFT AND PROCESS FOR COOLING A TURBINE SHAFT

摘要

The invention concerns a turbine shaft (1) which has an inflow area (3) for fluid (4a), particularly steam, and at least two recesses (5a, 5b) that are located axially at a distance from the inflow area (3) and from each other and that are used to receive at least one of the turbine blades (6a, 6b). The turbine shaft (1) is designed with a hollow space (7) which is associated to the inflow area (3) and connected to a feed line (8) and discharge line (9) for fluid (4b) to cool the turbine shaft (1). Furthernore, the invention concerns a process for cooling an inflow area (3) of a turbine shaft (1) mounted in a steam turbine.