| 摘要 |
An annular array of circumferentially spaced nozzle blades having an airfoil shaped cross section on the low pressure stages of an axial flow steam turbine wherein the stationary nozzle blades have a first slot adjacent their trailing edge and adjacent a turbine casing, a second slot adjacent the trailing edge and adjacent a rotor and a conduit connecting the slots so that water collected on the stationary nozzle blades is aspirated by the first slot, flows through the conduit, and is ejected from the second slot in atomized form and approaches the rotating blades at a location where the tangential velocity of the rotating blades is substantially lower, thus reducing the erosive effect of the water droplets on the rotating blades of the turbine.
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