Title:
ガスタービン用蒸気冷却系の部品を分解し、交換し、組み立てる方法
Document Type and Number:
Japanese Patent JP4436543
Kind Code:
B2
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 (56) adjacent the rim of the rotor. The supply tubes supply steam to circumferentially spaced manifold segments (120) 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 (30). Crossover tubes (146) couple the steam supply from the steam supply manifold segments through the 1-2 spacer to the buckets of the first stage. Crossover tubes (196) 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:
Ian David Wilson
Ronald Richard Wesolic
Ronald Richard Wesolic
Application Number:
JP2000213619A
Publication Date:
March 24, 2010
Filing Date:
July 14, 2000
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
F01D25/12; F02C7/18; F01D5/08; F02C7/00; F02C7/12
Domestic Patent References:
| JP9013902A | ||||
| JP11257012A | ||||
| JP10238301A | ||||
| JP8277725A | ||||
| JP11117702A | ||||
| JP11229804A |
Attorney, Agent or Firm:
Arakawa Satoshi