IT1260448B - Tenuta di ricircolazione per un diffusore di scarico per turbina a gas - Google Patents

Tenuta di ricircolazione per un diffusore di scarico per turbina a gas

Info

Publication number
IT1260448B
IT1260448B ITMI920137A ITMI920137A IT1260448B IT 1260448 B IT1260448 B IT 1260448B IT MI920137 A ITMI920137 A IT MI920137A IT MI920137 A ITMI920137 A IT MI920137A IT 1260448 B IT1260448 B IT 1260448B
Authority
IT
Italy
Prior art keywords
seal
gas turbine
cylinder
fabric
channels
Prior art date
Application number
ITMI920137A
Other languages
English (en)
Inventor
John Paul Donlan
Original Assignee
Westinghouse Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of ITMI920137A0 publication Critical patent/ITMI920137A0/it
Publication of ITMI920137A1 publication Critical patent/ITMI920137A1/it
Application granted granted Critical
Publication of IT1260448B publication Critical patent/IT1260448B/it

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/30—Exhaust heads, chambers, or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • 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
    • F01D11/005—Sealing means between non relatively rotating elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Gasket Seals (AREA)

Abstract

E' realizzata una tenuta per impedire la ricircolazione di gas caldo attraverso una cavità anulare formata tra il rivestimento esterno di circolazione di un diffusore ed un cilindro di scarico nella sezione di scarico di una turbina a gas. La tenuta è formata da un tessuto per alta temperatura, come per esempio fibra di vetro, che è inserito tra due strati di una maglia fitta. La tenuta è costituita da una molteplicità di segmenti arcuati. Benché il tessuto abbia una forma rettangolare quando si trova nel suo stato non deformato, esso assume una forma arcuata come conseguenza del fissaggio mediante raggrinzimento entro canali arcuati interno ed esterno. La tenuta è trattenuta facendo scorrere i canali in scanalature circonferenziali nel cilindro e nel rivestimento di circolazione esterno. Un'ansa di espansione è formata nella tenuta per consentire l'espansione differenziale tra il cilindro di scarico e il rivestimento esterno.
ITMI920137A 1991-02-08 1992-01-27 Tenuta di ricircolazione per un diffusore di scarico per turbina a gas IT1260448B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/652,693 US5104286A (en) 1991-02-08 1991-02-08 Recirculation seal for a gas turbine exhaust diffuser

Publications (3)

Publication Number Publication Date
ITMI920137A0 ITMI920137A0 (it) 1992-01-27
ITMI920137A1 ITMI920137A1 (it) 1993-07-27
IT1260448B true IT1260448B (it) 1996-04-09

Family

ID=24617782

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI920137A IT1260448B (it) 1991-02-08 1992-01-27 Tenuta di ricircolazione per un diffusore di scarico per turbina a gas

Country Status (4)

Country Link
US (1) US5104286A (it)
JP (1) JPH0814258B2 (it)
CA (1) CA2060876A1 (it)
IT (1) IT1260448B (it)

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IN2014DN07620A (it) 2012-03-20 2015-05-15 Alstom Technology Ltd
EP2679780B8 (en) 2012-06-28 2016-09-14 General Electric Technology GmbH Diffuser for the exhaust section of a gas turbine and gas turbine with such a diffuser
US20140062034A1 (en) * 2012-08-06 2014-03-06 General Electric Company Gas path leakage seal for a turbine
WO2014068355A1 (en) * 2012-10-30 2014-05-08 General Electric Company Gas turbine engine exhaust system and corresponding method for accessing turbine buckets
US9822664B1 (en) * 2013-03-14 2017-11-21 Calpine Corporation Turbine exhaust cylinder baffle seal and method for installing turbine exhaust cylinder baffle seal
JP6125329B2 (ja) * 2013-05-27 2017-05-10 株式会社東芝 静止部シール構造
EP3044446B1 (en) * 2013-09-13 2021-11-17 Raytheon Technologies Corporation Large displacement high temperature seal
US20150078892A1 (en) * 2013-09-17 2015-03-19 General Electric Company Eccentric coupling device and method for coupling mating casings in a turbomachine
WO2015084460A2 (en) * 2013-10-02 2015-06-11 United Technologies Corporation Recirculation seal for use in a gas turbine engine
EP2863019B1 (de) * 2013-10-18 2017-03-29 Siemens Aktiengesellschaft Dichtungsanordnung
DE102013223690A1 (de) * 2013-11-20 2015-05-21 Siemens Aktiengesellschaft Dichtungsanordnung einer Turbine
US9598981B2 (en) * 2013-11-22 2017-03-21 Siemens Energy, Inc. Industrial gas turbine exhaust system diffuser inlet lip
WO2015116399A1 (en) * 2014-01-28 2015-08-06 United Technologies Corporation Flexible cavity seal for gas turbine engines
JP6203090B2 (ja) 2014-03-14 2017-09-27 三菱日立パワーシステムズ株式会社 排気室入口側部材、排気室、ガスタービンおよび最終段タービン動翼取出方法
EP2947283B1 (fr) 2014-05-23 2017-01-11 GE Energy Products France SNC Structure d'isolation thermo-acoustique pour échappement de machine tournante
US10047622B2 (en) 2014-07-22 2018-08-14 General Electric Company Flexible layered seal for turbomachinery
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EP3073056B1 (en) * 2015-03-25 2018-01-03 Ansaldo Energia IP UK Limited Wire seal
US20160312633A1 (en) * 2015-04-24 2016-10-27 General Electric Company Composite seals for turbomachinery
US10041377B2 (en) * 2015-11-24 2018-08-07 General Electric Company System and method for turbine diffuser
EP3441578B1 (en) * 2017-08-11 2021-03-03 General Electric Company Turbine exhaust diffuser
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Also Published As

Publication number Publication date
ITMI920137A0 (it) 1992-01-27
US5104286A (en) 1992-04-14
CA2060876A1 (en) 1992-08-09
ITMI920137A1 (it) 1993-07-27
JPH0814258B2 (ja) 1996-02-14
JPH0552122A (ja) 1993-03-02

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Legal Events

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960130