BR0318261A - steam casing pressure phase with universal casing - Google Patents

steam casing pressure phase with universal casing

Info

Publication number
BR0318261A
BR0318261A BRPI0318261-4A BR0318261A BR0318261A BR 0318261 A BR0318261 A BR 0318261A BR 0318261 A BR0318261 A BR 0318261A BR 0318261 A BR0318261 A BR 0318261A
Authority
BR
Brazil
Prior art keywords
steam
casing
shell
holes
pressure phase
Prior art date
Application number
BRPI0318261-4A
Other languages
Portuguese (pt)
Inventor
Oleg Naljotov
Vladlen Zitin
Original Assignee
Oleg Naljotov
Vladlen Zitin
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 Oleg Naljotov, Vladlen Zitin filed Critical Oleg Naljotov
Publication of BR0318261A publication Critical patent/BR0318261A/en

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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/141—Shape, i.e. outer, aerodynamic form
    • F01D5/142—Shape, i.e. outer, aerodynamic form of the blades of successive rotor or stator blade-rows
    • F01D5/143—Contour of the outer or inner working fluid flow path wall, i.e. shroud or hub contour
    • 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
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • 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
    • F01D25/007—Preventing corrosion
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/31—Application in turbines in steam turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/60—Fluid transfer
    • F05D2260/602—Drainage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/95—Preventing corrosion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

"FOSE DE PRESSãO DE TURBINA DE VAPOR/GáS COM INVóLUCRO UNIVERSAL". O desenho inadequado de invólucros (8) ou partes idênticas das pás (7) de turbinas a vapor/gás. incluindo as vedações adjacentes, leva a uma diminuição de confiabilidade e eficiência. Tais imperfeições são eliminadas pelo uso de orifícios radiais perfurados (12) no invólucro das pás (7). A transferência de vapor através dos orifícios do invólucro (12) resulta em alívio dos gradientes de pressão na superfície do invólucro (8) e previne a formação de óxidos metálicos, sais e outros acúmulos nas superfícies internas do invólucro (8). A quantidade e diâmetro dos orifícios (12), bem como sua correspondente disposição e os valores dos espaçamentos radiais nas vedações da coroa do invólucro (4, 5) regulam sua eficiência."STEP / GAS TURBINE PRESSURE PHASE WITH UNIVERSAL CASE". Improper design of casings (8) or similar parts of steam / gas turbine blades (7). including adjacent seals, leads to decreased reliability and efficiency. Such imperfections are eliminated by the use of perforated radial holes (12) in the blade housing (7). Steam transfer through the holes in the shell (12) results in relief of pressure gradients on the surface of the shell (8) and prevents the formation of metal oxides, salts and other buildup on the inner surfaces of the shell (8). The number and diameter of the holes (12), as well as their corresponding arrangement and the values of the radial spacings at the housing crown seals (4,5) regulate their efficiency.

BRPI0318261-4A 2003-04-18 2003-04-18 steam casing pressure phase with universal casing BR0318261A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2003/012102 WO2004099572A1 (en) 2003-04-18 2003-04-18 Steam/gas turbine pressure stage with universal shroud

Publications (1)

Publication Number Publication Date
BR0318261A true BR0318261A (en) 2006-05-23

Family

ID=33434336

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0318261-4A BR0318261A (en) 2003-04-18 2003-04-18 steam casing pressure phase with universal casing

Country Status (10)

Country Link
EP (1) EP1623097A4 (en)
JP (1) JP4195882B2 (en)
CN (1) CN100386502C (en)
AU (1) AU2003228590B2 (en)
BR (1) BR0318261A (en)
CA (1) CA2562712C (en)
EA (1) EA008156B1 (en)
HK (1) HK1092853A1 (en)
UA (1) UA81314C2 (en)
WO (1) WO2004099572A1 (en)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE893649C (en) * 1940-05-04 1953-10-19 Siemens Ag Installation on steam or gas turbine blades
FR2166494A5 (en) * 1971-12-27 1973-08-17 Onera (Off Nat Aerospatiale)
SU663861A1 (en) * 1977-08-23 1979-05-25 Ленинградский Ордена Ленина Политехнический Институт Им.М.И.Калинина Axial turbine runner
JPS55146201A (en) * 1979-05-04 1980-11-14 Hitachi Ltd Moving blade for turbine
US4534701A (en) * 1982-06-29 1985-08-13 Gerhard Wisser Rotor or guide wheel of a turbine engine with shroud ring
DE3505491A1 (en) * 1985-02-16 1986-08-21 MTU Motoren- und Turbinen-Union München GmbH, 8000 München GASKET FOR A FLUID MACHINE
DE4015206C1 (en) * 1990-05-11 1991-10-17 Mtu Muenchen Gmbh
FR2661944B1 (en) * 1990-05-14 1994-06-10 Alsthom Gec TURBOMACHINE FLOOR WITH REDUCED SECONDARY LOSSES.
FR2666846B1 (en) * 1990-09-13 1992-10-16 Alsthom Gec VANE GRILLE FOR TURBOMACHINE PROVIDED WITH SUCTION SLOTS IN THE CEILING AND / OR IN THE FLOOR AND TURBOMACHINE COMPRISING SUCH GRIDS.
US5224713A (en) * 1991-08-28 1993-07-06 General Electric Company Labyrinth seal with recirculating means for reducing or eliminating parasitic leakage through the seal
GB9607578D0 (en) * 1996-04-12 1996-06-12 Rolls Royce Plc Turbine rotor blades
EP0844369B1 (en) * 1996-11-23 2002-01-30 ROLLS-ROYCE plc A bladed rotor and surround assembly
EP1013884B1 (en) * 1998-12-24 2005-07-27 ALSTOM Technology Ltd Turbine blade with actively cooled head platform

Also Published As

Publication number Publication date
EP1623097A1 (en) 2006-02-08
CA2562712C (en) 2011-05-31
EP1623097A4 (en) 2012-06-27
HK1092853A1 (en) 2007-02-16
CN100386502C (en) 2008-05-07
CN1788142A (en) 2006-06-14
AU2003228590A1 (en) 2004-11-26
WO2004099572A1 (en) 2004-11-18
JP2006523792A (en) 2006-10-19
EA200501572A1 (en) 2006-08-25
CA2562712A1 (en) 2004-11-18
UA81314C2 (en) 2007-12-25
AU2003228590B2 (en) 2010-01-07
JP4195882B2 (en) 2008-12-17
EA008156B1 (en) 2007-04-27

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