Debris trap in a turbine cooling system

Patent · Tue Jan 01 00:00:00 EST 2002

OSTI ID:874799

Wilson, Ian David ^[1]

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1. Clifton Park, NY

In a turbine having a rotor and a plurality of stages, each stage comprising a row of buckets mounted on the rotor for rotation therewith; and wherein the buckets of at least one of the stages are cooled by steam, the improvement comprising at least one axially extending cooling steam supply conduit communicating with an at least partially annular steam supply manifold; one or more axially extending cooling steam feed tubes connected to the manifold at a location radially outwardly of the cooling steam supply conduit, the feed tubes arranged to supply cooling steam to the buckets of at least one of the plurality of stages; the manifold extending radially beyond the feed tubes to thereby create a debris trap region for collecting debris under centrifugal loading caused by rotation of the rotor.

• Research Organization: General Electric Co., Schenectady, NY (United States)
• DOE Contract Number: FC21-95MC31176
• Assignee: General Electric Company (Schenectady, NY)
• Patent Number(s): US 6464455
• OSTI ID: 874799
• Country of Publication: United States
• Language: English

Related Subjects

debris
trap
turbine
cooling
rotor
plurality
stages
stage
comprising
row
buckets
mounted
rotation
cooled
steam
improvement
axially
extending
supply
conduit
communicating
partially
annular
manifold
feed
tubes
connected
location
radially
outwardly
arranged
create
region
collecting
centrifugal
loading
caused
axially extending
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