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Title: Cooling system for a gas turbine

Abstract

A plurality of arcuate circumferentially spaced supply and return manifold segments are arranged on the rim of a rotor for respectively receiving and distributing cooling steam through exit ports for distribution to first and second-stage buckets and receiving spent cooling steam from the first and second-stage buckets through inlet ports for transmission to axially extending return passages. Each of the supply and return manifold segments has a retention system for precluding substantial axial, radial and circumferential displacement relative to the rotor. The segments also include guide vanes for minimizing pressure losses in the supply and return of the cooling steam. The segments lie substantially equal distances from the centerline of the rotor and crossover tubes extend through each of the segments for communicating steam between the axially adjacent buckets of the first and second stages, respectively.

Inventors:
 [1];  [2];  [2]
  1. (Mauldin, SC)
  2. (Niskayuna, NY)
Issue Date:
Research Org.:
General Electric Company (Schenectady, NY)
OSTI Identifier:
874988
Patent Number(s):
6506021
Assignee:
General Electric Company (Schenectady, NY) NETL
DOE Contract Number:  
FC21-95MC31176
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
cooling; gas; turbine; plurality; arcuate; circumferentially; spaced; supply; return; manifold; segments; arranged; rim; rotor; receiving; distributing; steam; exit; ports; distribution; second-stage; buckets; spent; inlet; transmission; axially; extending; passages; retention; precluding; substantial; axial; radial; circumferential; displacement; guide; vanes; minimizing; pressure; losses; lie; substantially; equal; distances; centerline; crossover; tubes; extend; communicating; adjacent; stages; gas turbine; axially extending; /416/415/

Citation Formats

Wilson, Ian David, Salamah, Samir Armando, and Bylina, Noel Jacob. Cooling system for a gas turbine. United States: N. p., 2003. Web.
Wilson, Ian David, Salamah, Samir Armando, & Bylina, Noel Jacob. Cooling system for a gas turbine. United States.
Wilson, Ian David, Salamah, Samir Armando, and Bylina, Noel Jacob. Wed . "Cooling system for a gas turbine". United States. https://www.osti.gov/servlets/purl/874988.
@article{osti_874988,
title = {Cooling system for a gas turbine},
author = {Wilson, Ian David and Salamah, Samir Armando and Bylina, Noel Jacob},
abstractNote = {A plurality of arcuate circumferentially spaced supply and return manifold segments are arranged on the rim of a rotor for respectively receiving and distributing cooling steam through exit ports for distribution to first and second-stage buckets and receiving spent cooling steam from the first and second-stage buckets through inlet ports for transmission to axially extending return passages. Each of the supply and return manifold segments has a retention system for precluding substantial axial, radial and circumferential displacement relative to the rotor. The segments also include guide vanes for minimizing pressure losses in the supply and return of the cooling steam. The segments lie substantially equal distances from the centerline of the rotor and crossover tubes extend through each of the segments for communicating steam between the axially adjacent buckets of the first and second stages, respectively.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {1}
}

Patent:

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