Methods for disassembling, replacing and assembling parts of a steam cooling system for a gas turbine
Abstract
The steam cooling circuit for a gas turbine includes a bore tube assembly supplying steam to circumferentially spaced radial tubes coupled to supply elbows for transitioning the radial steam flow in an axial direction along steam supply tubes adjacent the rim of the rotor. The supply tubes supply steam to circumferentially spaced manifold segments located on the aft side of the 1-2 spacer for supplying steam to the buckets of the first and second stages. Spent return steam from these buckets flows to a plurality of circumferentially spaced return manifold segments disposed on the forward face of the 1-2 spacer. Crossover tubes couple the steam supply from the steam supply manifold segments through the 1-2 spacer to the buckets of the first stage. Crossover tubes through the 1-2 spacer also return steam from the buckets of the second stage to the return manifold segments. Axially extending return tubes convey spent cooling steam from the return manifold segments to radial tubes via return elbows. The bore tube assembly, radial tubes, elbows, manifold segments and crossover tubes are removable from the turbine rotor and replaceable.
- Inventors:
-
- Mauldin, SC
- Albany, NY
- Issue Date:
- Research Org.:
- General Electric Co., Schenectady, NY (United States)
- OSTI Identifier:
- 874864
- Patent Number(s):
- 6477773
- Assignee:
- General Electric Company (Schenectady, NY)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02C - GAS-TURBINE PLANTS
- DOE Contract Number:
- FC21-95MC31176
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- methods; disassembling; replacing; assembling; steam; cooling; gas; turbine; circuit; bore; tube; assembly; supplying; circumferentially; spaced; radial; tubes; coupled; supply; elbows; transitioning; flow; axial; direction; adjacent; rim; rotor; manifold; segments; located; 1-2; spacer; buckets; stages; spent; return; flows; plurality; disposed; forward; crossover; couple; stage; axially; extending; convey; via; removable; replaceable; gas turbine; steam flow; /29/
Citation Formats
Wilson, Ian D, and Wesorick, Ronald R. Methods for disassembling, replacing and assembling parts of a steam cooling system for a gas turbine. United States: N. p., 2002.
Web.
Wilson, Ian D, & Wesorick, Ronald R. Methods for disassembling, replacing and assembling parts of a steam cooling system for a gas turbine. United States.
Wilson, Ian D, and Wesorick, Ronald R. Tue .
"Methods for disassembling, replacing and assembling parts of a steam cooling system for a gas turbine". United States. https://www.osti.gov/servlets/purl/874864.
@article{osti_874864,
title = {Methods for disassembling, replacing and assembling parts of a steam cooling system for a gas turbine},
author = {Wilson, Ian D and Wesorick, Ronald R},
abstractNote = {The steam cooling circuit for a gas turbine includes a bore tube assembly supplying steam to circumferentially spaced radial tubes coupled to supply elbows for transitioning the radial steam flow in an axial direction along steam supply tubes adjacent the rim of the rotor. The supply tubes supply steam to circumferentially spaced manifold segments located on the aft side of the 1-2 spacer for supplying steam to the buckets of the first and second stages. Spent return steam from these buckets flows to a plurality of circumferentially spaced return manifold segments disposed on the forward face of the 1-2 spacer. Crossover tubes couple the steam supply from the steam supply manifold segments through the 1-2 spacer to the buckets of the first stage. Crossover tubes through the 1-2 spacer also return steam from the buckets of the second stage to the return manifold segments. Axially extending return tubes convey spent cooling steam from the return manifold segments to radial tubes via return elbows. The bore tube assembly, radial tubes, elbows, manifold segments and crossover tubes are removable from the turbine rotor and replaceable.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}
Works referenced in this record:
Development Requirements for an Advanced Gas Turbine System
journal, October 1995
- Bannister, R. L.; Cheruvu, N. S.; Little, D. A.
- Journal of Engineering for Gas Turbines and Power, Vol. 117, Issue 4
Advances in Steam Path Technology
journal, April 1996
- Cofer, J. I.
- Journal of Engineering for Gas Turbines and Power, Vol. 118, Issue 2