US3498727A - Blade ring support - Google Patents

Blade ring support Download PDF

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Publication number
US3498727A
US3498727A US700252A US3498727DA US3498727A US 3498727 A US3498727 A US 3498727A US 700252 A US700252 A US 700252A US 3498727D A US3498727D A US 3498727DA US 3498727 A US3498727 A US 3498727A
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US
United States
Prior art keywords
blade ring
casing
dowel
pin
dowel pin
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 - Lifetime
Application number
US700252A
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English (en)
Inventor
James A Martin Jr
Herbert A Hickey
George R Bollinger Jr
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.)
CBS 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
Application granted granted Critical
Publication of US3498727A publication Critical patent/US3498727A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/321—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration deceleration
    • B60T8/3235—Systems specially adapted for rail vehicles
    • 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
    • F01D25/26—Double casings; Measures against temperature strain in casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/60—Assembly methods
    • F05B2230/604—Assembly methods using positioning or alignment devices for aligning or centering, e.g. pins
    • F05B2230/608—Assembly methods using positioning or alignment devices for aligning or centering, e.g. pins for adjusting the position or the alignment, e.g. wedges or excenters
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/60—Assembly methods
    • F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
    • F05D2230/644—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins for adjusting the position or the alignment, e.g. wedges or eccenters

Definitions

  • FIG. 3 BLADE RING SUPPORT- 2 Sheets-Sheet 2 Filed Jan. 24, 1968 FIG. 3
  • This invention relates to elastic fluid utilizing machines and particularly to steam turbines of the axial flow type.
  • blade rings containing stationary blades which cooperate with blades carried by the turbine rotor may be mounted in the outer cylinder or casing of the turbine.
  • the casing and the blade rings are split along a horizontal plane into upper and lower half portions.
  • a prior method of supporting steam turbine blade rings in the outer cylinder or casing is by bolting a separate key to each side of the blade ring base half. Each key rests on a liner bolted to the outer cylinder.
  • the costly key design requires special fitting to the blade ring halves. Also, expensive machining is incurred in the blade ring for the key slot.
  • An object of this invention is to simplify the structure and reduce the cost of manufacturing and installing blade ring supports for elastic fluid utilizing machines, such as steam turbines.
  • Another object of the invention is to provide for adjusting the elevation alignment of each blade ring rela tive to the outer cylinder or casing of a turbine.
  • the outer cylinder or casing and the blade rings of a turbine are split along a horizontal plane into upper and lower half portions.
  • Circular dowel pins are secured in the base portion of each blade ring.
  • the pins extend outwardly horizontally along a plane parallel to the vertical plane of the ring and their heads rest on liners disposed in recesses 3,498,727 Patented Mar. 3, 1970 ice BRIEF DESCRIPTION OF THE DRAWINGS
  • FIGURE 1 is an isometric view of a portion of a steam turbine embodying principal features of the invention
  • FIG. 2 is an enlarged fragmentary detail view in vertical section, of one of the blade ring supports utilized in the structure shown in FIGURE 1;
  • FIG. 3 is a View, in section, taken along the line III- III in FIG. 2, and
  • FIG. 4 is a view, similar to FIG. 2, of a modified blade ring support.
  • the structure shown therein comprises a turbine outer cylinder or casing 8, with only the base portion 10 being shown in FIGURE 1, and a plurality of blade rings 12 mounted inside the turbine casing.
  • the turbine casing is divided along a horizontal plane PP into a base portion 10 and a cover portion 11 (see FIG. 2) which may be attached to the base portion 10 by means of bolts threaded into holes 14 in the base portion.
  • the blade rings 12 are each divided along the horizontal plane PP into a lower half portion 16 and an upper half portion 18. The upper portion 18 is attached to the lower portion 16 by means of bolts 20.
  • Each blade ring 12 contains a plurality of circular rows of stationary blades 22 which cooperate with blades carried by the turbine rotor (not shown) which extends through the turbine along the longitudinal axis LL and is supported by suitable bearings (not shown) in the casing 8.
  • the number of blade rings provided depends upon the size of the tur bine and the number of expansion stages.
  • each blade ring 12 is supported on horizontally oppositely disposed dowel pins 24 secured in the lower portion 16 of the blade ring.
  • the dowel pins 24 extend outwardly horizontally in a plane parallel to the vertical plane of the ring into horizontally oppositely disposed recesses 26 in the base 10 of the casing 8.
  • the dowel pins 24 are disposed in the recesses for axially slidable movement, thereby permit ting radial thermal expansion between the blade ring and the casing to occur without stress therein.
  • each dowel pin 24 rests on a fiat liner 28 disposed at the bottom of the recess 26 and attached to the casing 10 by screws 30.
  • the dowel pin 24 has a circular tapered portion 32 received in a tapered opening 34 in the lower portion 16 of the blade ring.
  • each dowel pin 24 has a plurality of, in this case, four flat surfaces 36, 38, 40 and 42 as shown in FIG. 3. Each surface is machined to a different dimension from the dowel pin centerline.
  • the dimension A is considered to be 1.000 inches
  • the dimension of B may be 1.005 inches
  • the dimension C may be 1.010 inches
  • the dimension D may be 1.015 inches.
  • each dowel pin may be rotated during assembly to select the dimension providing the required elevation of the blade ring for proper clearance between the blades 22 in the ring and the blades carried by the turbine rotor which rotates about the longitudinal axis L-L.
  • the surface 40 of the dowel pin 24 rests on the liner 28 with the surface 36 being engaged by a liner 44 retained in the recess 26 by screws 46. Since the surface 36, which is the shortest distance from the centerline of the dowel pin, is opposite the surface 40, which is the greatest distance from the dowel centerline, the liner 44 engages the head of the dowel pin to prevent riding-up of the blade ring. Since the sum of the dimensions B and C (1.005+1.010) equals the sum )f the dmiensions A and D (1000+ 1.015) the liner 44 will also engage the head of the dowel pin when either of the surfaces 38 or 42 is resting, on the liner 28 at the bottom of the recess 26. In this manner compensation may be made for manufacturing inaccuracy by rotating the dowel pins 24 to secure the desired elevational alignment of the blade ring. Likewise, compensation may be made for Wear of the supporting parts by replacing the liners 28 and 44.
  • the dowel pin 24 may be secured in the tapered openng 34 by the friction of the tapered fit. If desired, how- :ver, a locking pin 48 may be inserted into one of four radial holes 50 in the dowel pin to secure the pin. The rioles 50 correspond with the four flat surfaces on the lead of the dowel pin. The locking pin 48 may be thread- :d into the lower portion 16 of the blade ring.
  • t passageway 52 is provided from each opening 50 to he inner end of the dowel pin '24, the tapered portion )f which is shorter than the depth of the opening 34 provide a chamber 54 between the inner end of the lowel pin and the inner end of the opening 34.
  • the ocking pin 48 may be removed and a proper fitting uti ized in its place to inject a liquid into the chamber 54 .hrough the communicating passageway 52 to apply iydraulic pressure on the inner end of the dowel pin to assist in removing the dowel pin.
  • t cylindrical opening 34 is provided for the dowel pin 24- which is threaded into the opening 34' to retain the )in in the opening.
  • the head of the dowel pin 24 is :onstructed in the manner hereinbefore described and nay be rotated to secure the desired elevation of the )lade ring.
  • the liners 28' and 44' which are similar to he liners 28 and 44, respectively, but of different dinensions, cooperate with the head of the dowel pin 24' n the manner hereinbefore described to permit diifer- :ntial thermal expansion between the blade ring and he turbine casing and prevent riding-up of the blade ring.
  • the liners 28 and 44 are retained in position by screws to and 46, respectively.
  • the nvention provides an improved arrangement for sup- :orting blade rings in a turbine casing in a manner to 0 provide for differential thermal expansion between the lade rings and the outer cylinder or casing of the turine, Also, provision is made for adjusting the elevaion alignment of the blade rings relative to the casing o maintain proper clearance between the stationary tlades of the turbine and the blades carried by the rotor f the turbine which rotates about the longitudinal axis f the turbine.
  • the supporting structure is relatively sim- -le and it is relatively inexpensive to manufacture and nstall.
  • a blade ring disposed inside the casing and divided along a horizontal plane into upper and lower portions
  • said base portion having horizontally oppositely disposed recesses therein
  • dowel pins having generally circular portions secured in the lower portion of the blade ring
  • Said dowel pins extending outwardly horizontally into said recesses to slidably support the blade ring, the circular portion of at least one of said dowel pins being shorter than the depth of the opening for the pin and jointly forms a chamber therewith, and
  • each dowel pin is retained in the blade ring by a portion threaded into the blade ring.
  • each dowel pin has radial holes corresponding with the flat surfaces on its head
  • the dowel pin has a groove therein communicating between the radial hole and the chamber, said hole and said groove forming the passageway.
  • the locking pin is removable to permit the application of the hydraulic pressure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Hydraulic Turbines (AREA)
US700252A 1968-01-24 1968-01-24 Blade ring support Expired - Lifetime US3498727A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70025268A 1968-01-24 1968-01-24

Publications (1)

Publication Number Publication Date
US3498727A true US3498727A (en) 1970-03-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
US700252A Expired - Lifetime US3498727A (en) 1968-01-24 1968-01-24 Blade ring support

Country Status (8)

Country Link
US (1) US3498727A (xx)
BE (1) BE727153A (xx)
CH (1) CH503195A (xx)
DE (1) DE1900737A1 (xx)
ES (1) ES362670A1 (xx)
FR (1) FR2000678A1 (xx)
GB (1) GB1249682A (xx)
SE (1) SE345715B (xx)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3584967A (en) * 1968-05-20 1971-06-15 Sulzer Ag Mounting for adjustably holding a guide vane carrier in a multistage gas turbine
US3592557A (en) * 1968-12-03 1971-07-13 Siemens Ag Device for axially fixedly and radially displaceably mounting turbine casing parts
US3628878A (en) * 1968-12-03 1971-12-21 Siemens Ag Multishell axial turbine, preferably steam turbine for high pressures and temperatures
US3628884A (en) * 1970-06-26 1971-12-21 Westinghouse Electric Corp Method and apparatus for supporting an inner casing structure
US3861827A (en) * 1974-03-12 1975-01-21 Gen Electric Diaphragm support lugs
US3892500A (en) * 1974-07-10 1975-07-01 Westinghouse Electric Corp Adjustable axial positioning device
DE2607776A1 (de) * 1976-02-26 1977-09-01 Motoren Turbinen Union Deckscheibe fuer radial-laufraeder von stroemungsmaschinen, insbesondere gasturbinentriebwerke
US5123812A (en) * 1990-09-12 1992-06-23 Westinghouse Electric Corp. Apparatus for aligning a blade ring in a steam turbine
US5253977A (en) * 1990-12-14 1993-10-19 Technicatome Societe Technique Pour L'energie Atomique Multistage pump for two-phase effluents
US5259727A (en) * 1991-11-14 1993-11-09 Quinn Francis J Steam turbine and retrofit therefore
US20080069691A1 (en) * 2006-09-19 2008-03-20 General Electric Company System and method for aligning and sealing a turbine shell assembly
US20090232651A1 (en) * 2008-03-17 2009-09-17 General Electric Company Inner Turbine Shell Support Configuration and Methods
US20100212322A1 (en) * 2009-02-20 2010-08-26 General Electric Company Coaxial fuel and air premixer for a gas turbine combustor
US20120168601A1 (en) * 2009-09-02 2012-07-05 Andrew Cant Mounting apparatus
US20130022453A1 (en) * 2011-07-19 2013-01-24 General Electric Company Alignment member for steam turbine nozzle assembly
US8453454B2 (en) 2010-04-14 2013-06-04 General Electric Company Coannular oil injection nozzle
JP2015140693A (ja) * 2014-01-27 2015-08-03 三菱日立パワーシステムズ株式会社 位置調節装置、これを備えている回転機械、及び位置調節方法
US9441501B2 (en) 2009-05-05 2016-09-13 General Electric Company Turbine shell with pin support
US20170204745A1 (en) * 2014-07-25 2017-07-20 Siemens Aktiengesellschaft Apparatus for orienting a guide vane support relative to a turbine casing
US20170292390A1 (en) * 2016-04-06 2017-10-12 General Electric Company Turbomachine alignment key and related turbomachine
WO2019182611A1 (en) * 2018-03-23 2019-09-26 Siemens Energy, Inc. Adjustable torque pin
CN113202568A (zh) * 2021-06-16 2021-08-03 中国航发沈阳发动机研究所 一种发动机静子结构及其装配方法
CN113202569A (zh) * 2021-06-16 2021-08-03 中国航发沈阳发动机研究所 一种发动机静子结构

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4801373B2 (ja) * 2005-05-16 2011-10-26 三菱重工業株式会社 タービンの車室構造
DE102009012751A1 (de) * 2009-03-12 2010-09-23 Siemens Aktiengesellschaft Vorrichtung zur vertikalen und horizontalen Positionierung von Leitschaufelträgern in das Turbinengehäuse im eingebauten Zustand

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB369680A (en) * 1930-01-24 1932-03-31 Asea Ab Improved device for mounting an inner casing in an outer casing
GB744994A (en) * 1953-02-13 1956-02-15 English Electric Co Ltd Improvements relating to annular joints
DE1088067B (de) * 1953-01-26 1960-09-01 Siemens Ag Dampfturbine, insbesondere UEberdruck-turbine, mit einem in einer waagerechten Achsebene unterteilten Aussengehaeuse und einem ebenfalls in einer waagerechten Achsebene unterteilten Innengehaeuse
US3141651A (en) * 1962-08-13 1964-07-21 Gen Electric Turbine shroud structure
US3147952A (en) * 1963-01-28 1964-09-08 Westinghouse Electric Corp Pin-block, adjustable diaphragm support
US3169748A (en) * 1962-12-06 1965-02-16 Westinghouse Electric Corp Turbine apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB369680A (en) * 1930-01-24 1932-03-31 Asea Ab Improved device for mounting an inner casing in an outer casing
DE1088067B (de) * 1953-01-26 1960-09-01 Siemens Ag Dampfturbine, insbesondere UEberdruck-turbine, mit einem in einer waagerechten Achsebene unterteilten Aussengehaeuse und einem ebenfalls in einer waagerechten Achsebene unterteilten Innengehaeuse
GB744994A (en) * 1953-02-13 1956-02-15 English Electric Co Ltd Improvements relating to annular joints
US3141651A (en) * 1962-08-13 1964-07-21 Gen Electric Turbine shroud structure
US3169748A (en) * 1962-12-06 1965-02-16 Westinghouse Electric Corp Turbine apparatus
US3147952A (en) * 1963-01-28 1964-09-08 Westinghouse Electric Corp Pin-block, adjustable diaphragm support

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3584967A (en) * 1968-05-20 1971-06-15 Sulzer Ag Mounting for adjustably holding a guide vane carrier in a multistage gas turbine
US3592557A (en) * 1968-12-03 1971-07-13 Siemens Ag Device for axially fixedly and radially displaceably mounting turbine casing parts
US3628878A (en) * 1968-12-03 1971-12-21 Siemens Ag Multishell axial turbine, preferably steam turbine for high pressures and temperatures
US3628884A (en) * 1970-06-26 1971-12-21 Westinghouse Electric Corp Method and apparatus for supporting an inner casing structure
US3861827A (en) * 1974-03-12 1975-01-21 Gen Electric Diaphragm support lugs
US3892500A (en) * 1974-07-10 1975-07-01 Westinghouse Electric Corp Adjustable axial positioning device
DE2607776A1 (de) * 1976-02-26 1977-09-01 Motoren Turbinen Union Deckscheibe fuer radial-laufraeder von stroemungsmaschinen, insbesondere gasturbinentriebwerke
US4153387A (en) * 1976-02-26 1979-05-08 Mtu Munchen Gmbh Cover arrangement for radial rotors of turbo machines such as gas turbine engines
US5123812A (en) * 1990-09-12 1992-06-23 Westinghouse Electric Corp. Apparatus for aligning a blade ring in a steam turbine
US5253977A (en) * 1990-12-14 1993-10-19 Technicatome Societe Technique Pour L'energie Atomique Multistage pump for two-phase effluents
US5259727A (en) * 1991-11-14 1993-11-09 Quinn Francis J Steam turbine and retrofit therefore
US20080069691A1 (en) * 2006-09-19 2008-03-20 General Electric Company System and method for aligning and sealing a turbine shell assembly
US7520721B2 (en) * 2006-09-19 2009-04-21 General Electric Company System and method for aligning and sealing a turbine shell assembly
US8182207B2 (en) 2008-03-17 2012-05-22 General Electric Company Inner turbine shell support configuration and methods
US20090232651A1 (en) * 2008-03-17 2009-09-17 General Electric Company Inner Turbine Shell Support Configuration and Methods
JP2009222058A (ja) * 2008-03-17 2009-10-01 General Electric Co <Ge> 内側タービンシェル支持構成及び方法
US8443607B2 (en) 2009-02-20 2013-05-21 General Electric Company Coaxial fuel and air premixer for a gas turbine combustor
US20100212322A1 (en) * 2009-02-20 2010-08-26 General Electric Company Coaxial fuel and air premixer for a gas turbine combustor
US9441501B2 (en) 2009-05-05 2016-09-13 General Electric Company Turbine shell with pin support
US20120168601A1 (en) * 2009-09-02 2012-07-05 Andrew Cant Mounting apparatus
US8794587B2 (en) * 2009-09-02 2014-08-05 Siemens Aktiengesellschaft Mounting apparatus
US8453454B2 (en) 2010-04-14 2013-06-04 General Electric Company Coannular oil injection nozzle
US8834113B2 (en) * 2011-07-19 2014-09-16 General Electric Company Alignment member for steam turbine nozzle assembly
US20130022453A1 (en) * 2011-07-19 2013-01-24 General Electric Company Alignment member for steam turbine nozzle assembly
US10233770B2 (en) * 2014-01-27 2019-03-19 Mitsubishi Hitachi Power Systems, Ltd. Position adjustment device, rotating machine provided with same, and position adjustment method
JP2015140693A (ja) * 2014-01-27 2015-08-03 三菱日立パワーシステムズ株式会社 位置調節装置、これを備えている回転機械、及び位置調節方法
US20170204745A1 (en) * 2014-07-25 2017-07-20 Siemens Aktiengesellschaft Apparatus for orienting a guide vane support relative to a turbine casing
US10865659B2 (en) * 2014-07-25 2020-12-15 Siemens Aktiengesellschaft Apparatus for orienting a guide vane support relative to a turbine casing
US20170292390A1 (en) * 2016-04-06 2017-10-12 General Electric Company Turbomachine alignment key and related turbomachine
KR20170114969A (ko) * 2016-04-06 2017-10-16 제네럴 일렉트릭 컴퍼니 터보기계 정렬 키 및 관련 터보기계
US10280773B2 (en) * 2016-04-06 2019-05-07 General Electric Company Turbomachine alignment key and related turbomachine
WO2019182611A1 (en) * 2018-03-23 2019-09-26 Siemens Energy, Inc. Adjustable torque pin
CN113202568A (zh) * 2021-06-16 2021-08-03 中国航发沈阳发动机研究所 一种发动机静子结构及其装配方法
CN113202569A (zh) * 2021-06-16 2021-08-03 中国航发沈阳发动机研究所 一种发动机静子结构

Also Published As

Publication number Publication date
GB1249682A (en) 1971-10-13
ES362670A1 (es) 1970-10-01
DE1900737A1 (de) 1970-04-16
CH503195A (de) 1971-02-15
FR2000678A1 (xx) 1969-09-12
BE727153A (xx) 1969-07-01
SE345715B (xx) 1972-06-05

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