EP 2692990 B1 20181107 - Steam turbine stationary blade and corresponding steam turbine
Title (en)
Steam turbine stationary blade and corresponding steam turbine
Title (de)
Leitschaufel einer Dampfturbine und zugehörige Dampfturbine
Title (fr)
Aube directrice de turbine à vapeur et turbine à vapeur associée
Publication
Application
Priority
JP 2012167902 A 20120730
Abstract (en)
[origin: EP2692990A2] The present invention is a steam turbine comprising a turbine stage having a stationary blade (1) and a moving blade (2) provided on the downstream side of the stationary blade in a working fluid flow direction, wherein the stationary blade (1) is formed in a hollow blade shape by deformation processing a metal plate, and wherein a slit (24) to guide liquid droplets deposited on a blade wall surface to the inside of the blade is formed in the blade wall by overlaying an airfoil suction-side metal plate (20) and an airfoil pressure-side metal plate (21) with a gap therebetween in a blade tail part (8) of the stationary blade (1).
IPC 8 full level
F01D 5/14 (2006.01); F01D 5/28 (2006.01); F01D 25/32 (2006.01)
CPC (source: EP US)
F01D 5/28 (2013.01 - US); F01D 25/32 (2013.01 - EP US); F01D 5/147 (2013.01 - EP US); F05D 2240/122 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2692990 A2 20140205; EP 2692990 A3 20150422; EP 2692990 B1 20181107; CN 103628929 A 20140312; CN 103628929 B 20160113; JP 2014025443 A 20140206; JP 5919123 B2 20160518; US 2014030065 A1 20140130
DOCDB simple family (application)
EP 13178438 A 20130730; CN 201310321345 A 20130729; JP 2012167902 A 20120730; US 201313953405 A 20130729