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GB1348446A - Bladed diaphragm structure for an axial flow machine - Google Patents

Bladed diaphragm structure for an axial flow machine

Info

Publication number
GB1348446A
GB1348446A GB4868072A GB4868072A GB1348446A GB 1348446 A GB1348446 A GB 1348446A GB 4868072 A GB4868072 A GB 4868072A GB 4868072 A GB4868072 A GB 4868072A GB 1348446 A GB1348446 A GB 1348446A
Authority
GB
United Kingdom
Prior art keywords
holes
disc
grooves
bladed
diaphragm
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB4868072A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westinghouse Electric Corp
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 GB1348446A publication Critical patent/GB1348446A/en
Expired legal-status Critical Current

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
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F01D25/246—Fastening of diaphragms or stator-rings
    • 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)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1348446 Making bladed diaphragms WESTINGHOUSE ELECTRIC CO 23 Oct 1972 [1 Dec 1971] 48680/72 Heading B3A [Also in Division F1] A bladed diaphragm for an axial flow turbine or compressor is made by drilling a pair of diametrically opposed radial holes in a ring together with similar holes in a disc, aligning the holes in the ring and disc, welding stator blades between the ring and disc, and then sawing the assembly along a plane P-P<SP>1</SP> coinciding with the holes to form upper and lower diaphragm segments 16a, 16b having part-circular grooves 29a, 29b and 31a, 31b in the mating faces. To facilitate retention of cylindrical sealing rods 30, 33 in the lower grooves 29b, 31b the dividing plane P-P<SP>1</SP> is slightly above the diaphragm centre C so that the lower grooves are deeper than upper grooves 29a, 31a.
GB4868072A 1971-12-01 1972-10-23 Bladed diaphragm structure for an axial flow machine Expired GB1348446A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20381771A 1971-12-01 1971-12-01

Publications (1)

Publication Number Publication Date
GB1348446A true GB1348446A (en) 1974-03-20

Family

ID=22755448

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4868072A Expired GB1348446A (en) 1971-12-01 1972-10-23 Bladed diaphragm structure for an axial flow machine

Country Status (3)

Country Link
US (1) US3788767A (en)
ES (1) ES408544A1 (en)
GB (1) GB1348446A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2005349A (en) * 1977-10-03 1979-04-19 Rockwell International Corp Axial flow slurry pump
EP0058532A3 (en) * 1981-02-17 1983-04-27 Mitsubishi Jukogyo Kabushiki Kaisha Axial flow turbine nozzle

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5807074A (en) * 1995-02-03 1998-09-15 General Electric Co. Turbine nozzle diaphragm joint
US5772401A (en) * 1995-10-13 1998-06-30 Dresser-Rand Company Diaphragm construction for turbomachinery
DE19547653C2 (en) * 1995-12-20 1999-08-19 Abb Patent Gmbh Guide device for a turbine with a guide vane carrier and method for producing this guide device
US5788456A (en) * 1997-02-21 1998-08-04 Dresser-Rand Company Turbine diaphragm assembly and method thereof
US6179555B1 (en) * 1998-10-06 2001-01-30 Pratt & Whitney Canada Corp. Sealing of T.O.B.I feed plenum
US6652231B2 (en) * 2002-01-17 2003-11-25 General Electric Company Cloth seal for an inner compressor discharge case and methods of locating the seal in situ
US6742988B2 (en) * 2002-10-30 2004-06-01 General Electric Company Composite tubular woven seal for steam turbine diaphragm horizontal joint interfaces
US7357342B2 (en) * 2005-09-23 2008-04-15 Riley Power, Inc. Split fan wheel and split shroud assemblies and methods of manufacturing and assembling the same
US8702385B2 (en) * 2006-01-13 2014-04-22 General Electric Company Welded nozzle assembly for a steam turbine and assembly fixtures
US7997860B2 (en) * 2006-01-13 2011-08-16 General Electric Company Welded nozzle assembly for a steam turbine and related assembly fixtures
US7758307B2 (en) * 2007-05-17 2010-07-20 Siemens Energy, Inc. Wear minimization system for a compressor diaphragm
CN101936193B (en) * 2009-06-30 2013-07-10 上海电气电站设备有限公司 Method for manufacturing integral nozzle block of large-sized steam turbine
JP6314049B2 (en) * 2014-07-24 2018-04-18 三菱日立パワーシステムズ株式会社 Stationary member of rotating machine and gas turbine
US9784116B2 (en) * 2015-01-15 2017-10-10 General Electric Company Turbine shroud assembly
JP7038626B2 (en) * 2018-08-07 2022-03-18 三菱重工コンプレッサ株式会社 Manufacturing method of steam turbine and steam turbine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1641665A (en) * 1925-11-21 1927-09-06 Gen Electric Turbine-nozzle diaphragm
US2013512A (en) * 1933-03-11 1935-09-03 Laval Steam Turbine Co Guide vane and diaphragm construction for turbines
US2217500A (en) * 1939-04-15 1940-10-08 Gen Electric Turbine diaphragm arrangement
US2247387A (en) * 1940-01-25 1941-07-01 Gen Electric Elastic fluid turbine diaphragm supporting and centering arrangement
US2247423A (en) * 1940-01-25 1941-07-01 Gen Electric Elastic fluid turbine diaphragm supporting and centering arrangement
US2661147A (en) * 1949-01-19 1953-12-01 Ingersoll Rand Co Blower blade fastening device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2005349A (en) * 1977-10-03 1979-04-19 Rockwell International Corp Axial flow slurry pump
EP0058532A3 (en) * 1981-02-17 1983-04-27 Mitsubishi Jukogyo Kabushiki Kaisha Axial flow turbine nozzle

Also Published As

Publication number Publication date
US3788767A (en) 1974-01-29
ES408544A1 (en) 1976-04-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees