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EP0394899A1 - Rotorabstützung in einer Turbine mit axialem Austritt mit einer direkten, gleichförmigen Befestigung des austrittseitigen Lagers am Fundament - Google Patents

Rotorabstützung in einer Turbine mit axialem Austritt mit einer direkten, gleichförmigen Befestigung des austrittseitigen Lagers am Fundament Download PDF

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Publication number
EP0394899A1
EP0394899A1 EP90107624A EP90107624A EP0394899A1 EP 0394899 A1 EP0394899 A1 EP 0394899A1 EP 90107624 A EP90107624 A EP 90107624A EP 90107624 A EP90107624 A EP 90107624A EP 0394899 A1 EP0394899 A1 EP 0394899A1
Authority
EP
European Patent Office
Prior art keywords
bearing
exhaust
wall
support system
tie rods
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.)
Granted
Application number
EP90107624A
Other languages
English (en)
French (fr)
Other versions
EP0394899B1 (de
Inventor
Jean-Pierre Gros
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.)
Alstom Holdings SA
Original Assignee
GEC Alsthom SA
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 GEC Alsthom SA filed Critical GEC Alsthom SA
Publication of EP0394899A1 publication Critical patent/EP0394899A1/de
Application granted granted Critical
Publication of EP0394899B1 publication Critical patent/EP0394899B1/de
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
    • F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
    • F01D25/162—Bearing supports
    • 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
    • F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing

Definitions

  • one of the bearings which supports the rotor is integrated in the exhaust bottom.
  • This bearing is held by means of tie rods judiciously placed in the exhaust bottom which transfer the normal and accidental forces of the rotor to the support legs and to the transverse centering of the stator, the legs and the transverse centering of the stator being resting on the raft.
  • each azimuth corresponds to a different stiffness which makes it more difficult to hold the line of trees during significant accidental unbalance.
  • Document FR-A-7 510 810 also discloses a gas turbine installation in which the bearing is held by two crutches connected to the raft.
  • crutches are long and have insufficient stiffness to support large unbalances.
  • One of the aims of the support system according to the invention defined by the claims is to increase the stiffness of the bearing supporting the rotor and to ensure, under better conditions, the bearing behavior with regard to major accidents (for example loss of one last BP fin). This result is further improved when the stiffness of the bearing is isotropic.
  • any unbalance of the rotor cannot excite a specific mode of the structure of the stator.
  • Figures 1 and 2 show a known turbine having an axial exhaust 1 forming part of the stator 2.
  • This turbine comprises a bearing 3 supported by a concrete support 4 forming part of a concrete base 5 located on the inlet side 6 and another bearing 7 on the side of the exhaust 1.
  • the bearing 7 comprises a pad 8 and a stirrup 9 which supports the rotor 10 as well as a vapor lining 11.
  • This lining 11 provides a seal between the steam and the atmospheric pressure to which it is connected by a pipe 20.
  • the bearing 7 is supported by tie rods 12 fixed at their ends on the exhaust wall 1.
  • the exhaust 1 is provided with two lateral legs 13 which rest on concrete supports 14 integral with the raft 5.
  • a transverse centering device 15 is located at the bottom of the exhaust.
  • This device 15 comprises two horizontal bars 16 bolted at one end to fasteners 17 secured to the bottom of the exhaust and at the other end to fasteners 18 fixed on the concrete slab 5.
  • the exhaust 1 comprises an intermediate half-piece 19 which can be dismantled by means of two vertical half-flanges.
  • the normal and accidental forces of the rotor 10 are transferred by the tie rods 12 to the wall of the exhaust which transmits them to the legs 13 and or to the centering device 15.
  • tie rods 12 distributed over the entire circumference inside the exhaust are generating a relatively large pressure drop.
  • the rotor 10 of the turbine is supported by two bearings 3 and 7, one located on the intake side 6, the other in the axial exhaust 1.
  • the bearing 3 is supported by a concrete support 4 integral with the concrete slab 5.
  • the bearing 7 comprises a pad 8 on which is fixed a stirrup 9 and a steam lining 11.
  • the lining 11 is brought to atmospheric pressure by a line 20.
  • a vertical concrete wall 21 is provided integral with the raft 5 and provided with a circular opening 22 through which the exhaust 1 passes.
  • the tie rods 12 when they are four are arranged in a cross having a horizontal branch and a vertical branch.
  • the tie rods 12 are provided with sealing bellows 24 at their crossing with the wall of the exhaust 1.
  • the lower part of the exhaust 1 is integral with the stator 2. It is provided with two lateral support legs 13 which rest on the concrete block 14 integral with the raft 5.
  • a transverse centering device 15 of the stator 2 is located on the exhaust side 1. It comprises a key 25 mounted on a concrete support 26 secured to the base 5, said key 25 being trapped in a slide 27 parallel to the axis of the turbine and secured to the exhaust.
  • the supports 4, 14, 26 and the wall 21 are preferably made of concrete and are directly integrated into the raft 5 and constitute with it a solid mass.
  • the uniform azimuth distribution of the tie rods 12 makes it possible to resist accidental forces due to large unbalances in the best conditions.
  • the tie rods 12 necessary for the transmission of these forces are much less numerous than those which should be used in the known system. The pressure losses at the exhaust are thus minimized.
  • the supports 14 supporting the side tabs 13 can be of less massive construction and the centering device 15 can be a simple key device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Support Of The Bearing (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Rolling Contact Bearings (AREA)
EP90107624A 1989-04-26 1990-04-23 Rotorabstützung in einer Turbine mit axialem Austritt mit einer direkten, gleichförmigen Befestigung des austrittseitigen Lagers am Fundament Expired - Lifetime EP0394899B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8905544 1989-04-26
FR8905544A FR2646470B1 (fr) 1989-04-26 1989-04-26 Systeme de supportage du rotor dans une turbine a echappement axial avec le palier cote echappement a raideur isotrope, directement flasque sur la fondation

Publications (2)

Publication Number Publication Date
EP0394899A1 true EP0394899A1 (de) 1990-10-31
EP0394899B1 EP0394899B1 (de) 1993-03-03

Family

ID=9381158

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90107624A Expired - Lifetime EP0394899B1 (de) 1989-04-26 1990-04-23 Rotorabstützung in einer Turbine mit axialem Austritt mit einer direkten, gleichförmigen Befestigung des austrittseitigen Lagers am Fundament

Country Status (13)

Country Link
US (1) US5108258A (de)
EP (1) EP0394899B1 (de)
JP (1) JPH02301605A (de)
CN (1) CN1021518C (de)
AT (1) ATE86358T1 (de)
CS (1) CS207290A3 (de)
DE (1) DE69000985T2 (de)
DK (1) DK0394899T3 (de)
ES (1) ES2039986T3 (de)
FR (1) FR2646470B1 (de)
MX (1) MX173021B (de)
RU (1) RU1808094C (de)
ZA (1) ZA903192B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101230800B (zh) * 2007-01-22 2013-06-19 通用电气公司 涡轮机转子支撑设备和系统

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59007880D1 (de) * 1990-12-10 1995-01-12 Asea Brown Boveri Lagerung einer thermischen Turbomaschine.
FR2697052B1 (fr) * 1992-10-21 1994-12-09 Alsthom Gec Enveloppe en béton d'un condenseur pour module basse pression à structure indépendante.
FR2697053B1 (fr) * 1992-10-21 1994-12-09 Alsthom Gec Condenseur en béton pour turbine à vapeur à échappement axial avec montage simplifié des faisceaux.
US5509782A (en) * 1995-03-02 1996-04-23 Dresser-Rand Company Bearing case support
CZ292470B6 (cs) * 1997-05-21 2003-09-17 Siemens Aktiengesellschaft Parní turbosoustrojí
DE19842811A1 (de) * 1998-09-18 1999-07-15 Siemens Ag Anordnung mit einem Stirnlager in einem axialen Abströmraum, insbesondere einer Dampfturbinenanlage
DE10210174A1 (de) * 2002-03-07 2003-09-25 Alstom Switzerland Ltd Thermische Turbomaschine, insbesondere axialdurchströmte Gasturbine
US6821083B2 (en) * 2003-02-06 2004-11-23 General Electric Company Support structure for stream turbine bearing housing
US7329088B2 (en) * 2005-11-17 2008-02-12 Honeywell International, Inc. Pilot relief to reduce strut effects at pilot interface
US8047779B2 (en) * 2008-10-23 2011-11-01 General Electric Company Combined axial and transverse constraint and alignment system and method for rotary machines
US9032620B2 (en) 2008-12-12 2015-05-19 Nuovo Pignone S.P.A. Method for moving and aligning heavy device
EP2373873B1 (de) 2008-12-22 2015-01-28 Siemens Aktiengesellschaft Turbomaschinenfusseinheit
US8388314B2 (en) * 2011-04-21 2013-03-05 General Electric Company Turbine inlet casing with integral bearing housing
US9157335B2 (en) * 2012-03-27 2015-10-13 General Electric Company Side supported turbine shell
US8961116B2 (en) * 2012-05-22 2015-02-24 Braden Manufacturing, Llc Exhaust plenum for gas turbine
EP2977565A1 (de) * 2014-07-21 2016-01-27 Siemens Aktiengesellschaft Turbomaschinenanordnung
CN104632305B (zh) * 2014-12-24 2016-01-13 上海交通大学 具有弹性结构的高压转子卧式智能化装配装备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1130410A (fr) * 1954-09-17 1957-02-05 Napier & Son Ltd Turbine à gaz
DE1093144B (de) * 1957-12-12 1960-11-17 Napier & Son Ltd Verbrennungsturbinentriebwerk
FR2267455A1 (de) * 1974-04-09 1975-11-07 Bbc Sulzer Turbomaschinen
DE3243659A1 (de) * 1981-12-08 1983-07-21 United Technologies Corp., 06101 Hartford, Conn. Austrittsgehaeusebaugruppe fuer ein axialgasturbinentriebwerk

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR94654E (fr) * 1968-02-01 1969-10-03 Creusot Forges Ateliers Compensateur des dilatations thermiques, pour support amont de groupes hydro-électriques du type bulbe.
CH552130A (de) * 1972-11-28 1974-07-31 Bbc Brown Boveri & Cie Turbinengehaeuse.
US4076452A (en) * 1974-04-09 1978-02-28 Brown, Boveri-Sulzer Turbomaschinen Ag Gas turbine plant
CH592268A5 (de) * 1975-07-02 1977-10-14 Bbc Brown Boveri & Cie
AT345757B (de) * 1976-04-13 1978-10-10 Voest Ag Turbinengehaeuse fuer rohrturbinen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1130410A (fr) * 1954-09-17 1957-02-05 Napier & Son Ltd Turbine à gaz
DE1093144B (de) * 1957-12-12 1960-11-17 Napier & Son Ltd Verbrennungsturbinentriebwerk
FR2267455A1 (de) * 1974-04-09 1975-11-07 Bbc Sulzer Turbomaschinen
DE3243659A1 (de) * 1981-12-08 1983-07-21 United Technologies Corp., 06101 Hartford, Conn. Austrittsgehaeusebaugruppe fuer ein axialgasturbinentriebwerk

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101230800B (zh) * 2007-01-22 2013-06-19 通用电气公司 涡轮机转子支撑设备和系统

Also Published As

Publication number Publication date
EP0394899B1 (de) 1993-03-03
DE69000985D1 (de) 1993-04-08
DE69000985T2 (de) 1993-06-09
MX173021B (es) 1994-01-28
CN1046783A (zh) 1990-11-07
FR2646470A1 (fr) 1990-11-02
US5108258A (en) 1992-04-28
FR2646470B1 (fr) 1991-07-05
RU1808094C (ru) 1993-04-07
CS207290A3 (en) 1992-06-17
CN1021518C (zh) 1993-07-07
ES2039986T3 (es) 1993-10-01
DK0394899T3 (da) 1993-06-14
ZA903192B (en) 1991-01-30
JPH02301605A (ja) 1990-12-13
ATE86358T1 (de) 1993-03-15

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