Stationary turbine blade and steam turbine
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsChongfei DUAN, Shunsuke MIZUMI, Soichiro TABATA, Koji ISHIBASHI
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Abstract
This stationary turbine blade comprises: a stationary blade main body extending in the radial direction intersecting the flow direction of steam; a hydrophilic region which is formed on the surface of the stationary blade main body and which has a higher hydrophilicity than the other parts and has the radial dimension gradually increasing toward the downstream side in the flow direction; and a collecting portion which is provided on the downstream side of the hydrophilic region and which collects a liquid film flowing along the hydrophilic region.
Claims11
A turbine stator blade comprising:
- a stator blade body extending in a radial direction intersecting a flow direction of steam;
- a hydrophilic region that, is formed on a surface of the stator blade body, has higher hydrophilicity than other portions, and has a radial dimension gradually increasing toward a downstream side in the flow direction;
- and
- a collecting portion that is provided on a downstream side of the hydrophilic region and that collects a liquid film flowing along the hydrophilic region.
Dependencies are inferred from the claim text.