Segmented inlet nozzle for gas turbine, and methods of installation

Klompas, Nicholas

Title: Segmented inlet nozzle for gas turbine, and methods of installation

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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:

Klompas, Nicholas ^[1]

Scotia, NY

Issue Date:: 1985-01-01

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

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F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F01D11/00 - Preventing or minimising internal leakage of working-fluid, e.g. between stages
F01D5/185 - {Liquid cooling
F01D9/041 - {using blades

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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/

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                    Klompas, Nicholas. Segmented inlet nozzle for gas turbine, and methods of installation.  United States: N. p., 1985. 
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                    Klompas, Nicholas. Segmented inlet nozzle for gas turbine, and methods of installation.  United States.

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                    Klompas, Nicholas. Tue .  
        "Segmented inlet nozzle for gas turbine, and methods of installation".  United States.  https://www.osti.gov/servlets/purl/865304.

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@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}

}

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