Segmented inlet nozzle for gas turbine, and methods of installation
Abstract
A gas turbine nozzle guide vane assembly is formed of individual arcuate nozzle segments. The arcuate nozzle segments are elastically joined to each other to form a complete ring, with edges abutted to prevent leakage. The resultant nozzle ring is included within the overall gas turbine stationary structure and secured by a mounting arrangement which permits relative radial movement at both the inner and outer mountings. A spline-type outer mounting provides circumferential retention. A complete rigid nozzle ring with freedom to "float" radially results. Specific structures are disclosed for the inner and outer mounting arrangements. A specific tie-rod structure is also disclosed for elastically joining the individual nozzle segments. Also disclosed is a method of assembling the nozzle ring subassembly-by-subassembly into a gas turbine employing temporary jacks.
- Inventors:
-
- Scotia, NY
- Issue Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- OSTI Identifier:
- 865304
- Patent Number(s):
- 4492517
- 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
- DOE Contract Number:
- AC04-76
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- segmented; inlet; nozzle; gas; turbine; methods; installation; guide; vane; assembly; formed; individual; arcuate; segments; elastically; joined; form; complete; edges; abutted; prevent; leakage; resultant; included; overall; stationary; structure; secured; mounting; arrangement; permits; relative; radial; movement; inner; outer; mountings; spline-type; provides; circumferential; retention; rigid; freedom; float; radially; results; specific; structures; disclosed; arrangements; tie-rod; joining; method; assembling; subassembly-by-subassembly; employing; temporary; jacks; radial movement; nozzle segments; prevent leakage; relative radial; turbine nozzle; inlet nozzle; nozzle guide; gas turbine; vane assembly; guide vane; mounting arrangement; nozzle segment; arcuate nozzle; /415/416/
Citation Formats
Klompas, Nicholas. Segmented inlet nozzle for gas turbine, and methods of installation. United States: N. p., 1985.
Web.
Klompas, Nicholas. Segmented inlet nozzle for gas turbine, and methods of installation. United States.
Klompas, Nicholas. Tue .
"Segmented inlet nozzle for gas turbine, and methods of installation". United States. https://www.osti.gov/servlets/purl/865304.
@article{osti_865304,
title = {Segmented inlet nozzle for gas turbine, and methods of installation},
author = {Klompas, Nicholas},
abstractNote = {A gas turbine nozzle guide vane assembly is formed of individual arcuate nozzle segments. The arcuate nozzle segments are elastically joined to each other to form a complete ring, with edges abutted to prevent leakage. The resultant nozzle ring is included within the overall gas turbine stationary structure and secured by a mounting arrangement which permits relative radial movement at both the inner and outer mountings. A spline-type outer mounting provides circumferential retention. A complete rigid nozzle ring with freedom to "float" radially results. Specific structures are disclosed for the inner and outer mounting arrangements. A specific tie-rod structure is also disclosed for elastically joining the individual nozzle segments. Also disclosed is a method of assembling the nozzle ring subassembly-by-subassembly into a gas turbine employing temporary jacks.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}