Steam turbine
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United States of America Patent
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Apr 17, 2018
Issued Date -
N/A
app pub date -
Feb 25, 2014
filing date -
Mar 12, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A steam turbine 10 according to an embodiment includes: a casing 20 having a turbine rotor 22; a diaphragm outer ring 23 arranged at an inner side of the casing 20, and having a hollow part 30 inside thereof; a diaphragm inner ring 24 arranged at an inner side of the diaphragm outer ring 23; and a stationary blade 25 joined to the diaphragm outer ring 23 by welding and supported between the diaphragm outer ring 23 and the diaphragm inner ring 24. A non-joint part 61 existing at a part of a joint part 60 between the diaphragm outer ring 23 and the stationary blade 25, and in which an end part at an outer diameter side of the stationary blade 25 is not welded to the diaphragm outer ring 23; and a suction part 40 collecting waterdroplet or a water film from the non-joint part 61 are included.
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