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Title: Retention sleeve for a thermal medium carrying tube in a gas turbine

Abstract

Multiple tubes are connected to steam supply and spent cooling steam return manifolds for supplying cooling steam to buckets and returning spent cooling steam from the buckets to the manifolds, respectively. The tubes are prevented from axial movement in one direction by flanges engaging end faces of the spacer between the first and second-stage wheels. Retention sleeves are disposed about cantilevered ends of the tubes. One end of the retention sleeve engages an enlarged flange on the tube, while an opposite end is spaced axially from an end face of the adjoining wheel, forming a gap, enabling thermal expansion of the tubes and limiting axial displacement of the tube in the opposite direction.

Inventors:
 [1];  [2]
  1. (Ballston Lake, NY)
  2. (Cincinnati, OH)
Issue Date:
Research Org.:
General Electric Company (Schenectady, NY)
OSTI Identifier:
875068
Patent Number(s):
6524062
Assignee:
General Electric Company (Schenectady, NY) NETL
DOE Contract Number:  
FC21-95MC31176
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
retention; sleeve; thermal; medium; carrying; tube; gas; turbine; multiple; tubes; connected; steam; supply; spent; cooling; return; manifolds; supplying; buckets; returning; prevented; axial; movement; direction; flanges; engaging; spacer; second-stage; wheels; sleeves; disposed; cantilevered; engages; enlarged; flange; opposite; spaced; axially; adjoining; wheel; forming; gap; enabling; expansion; limiting; displacement; thermal expansion; gas turbine; axial movement; /415/416/

Citation Formats

Lathrop, Norman Douglas, and Czachor, Robert Paul. Retention sleeve for a thermal medium carrying tube in a gas turbine. United States: N. p., 2003. Web.
Lathrop, Norman Douglas, & Czachor, Robert Paul. Retention sleeve for a thermal medium carrying tube in a gas turbine. United States.
Lathrop, Norman Douglas, and Czachor, Robert Paul. Wed . "Retention sleeve for a thermal medium carrying tube in a gas turbine". United States. https://www.osti.gov/servlets/purl/875068.
@article{osti_875068,
title = {Retention sleeve for a thermal medium carrying tube in a gas turbine},
author = {Lathrop, Norman Douglas and Czachor, Robert Paul},
abstractNote = {Multiple tubes are connected to steam supply and spent cooling steam return manifolds for supplying cooling steam to buckets and returning spent cooling steam from the buckets to the manifolds, respectively. The tubes are prevented from axial movement in one direction by flanges engaging end faces of the spacer between the first and second-stage wheels. Retention sleeves are disposed about cantilevered ends of the tubes. One end of the retention sleeve engages an enlarged flange on the tube, while an opposite end is spaced axially from an end face of the adjoining wheel, forming a gap, enabling thermal expansion of the tubes and limiting axial displacement of the tube in the opposite direction.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {1}
}

Patent:

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