EP0752515A2 - Arrangement de chambre pour palier d'arbre de turbine à gaz - Google Patents

Arrangement de chambre pour palier d'arbre de turbine à gaz Download PDF

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Publication number
EP0752515A2
EP0752515A2 EP96110556A EP96110556A EP0752515A2 EP 0752515 A2 EP0752515 A2 EP 0752515A2 EP 96110556 A EP96110556 A EP 96110556A EP 96110556 A EP96110556 A EP 96110556A EP 0752515 A2 EP0752515 A2 EP 0752515A2
Authority
EP
European Patent Office
Prior art keywords
gas turbine
bearing
chamber
chamber arrangement
ventilation
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.)
Withdrawn
Application number
EP96110556A
Other languages
German (de)
English (en)
Other versions
EP0752515A3 (fr
Inventor
Reinhold Hecken
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.)
Rolls Royce Deutschland Ltd and Co KG
Original Assignee
BMW Rolls Royce GmbH
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 BMW Rolls Royce GmbH filed Critical BMW Rolls Royce GmbH
Publication of EP0752515A2 publication Critical patent/EP0752515A2/fr
Publication of EP0752515A3 publication Critical patent/EP0752515A3/fr
Withdrawn legal-status Critical Current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
    • F01D25/18—Lubricating arrangements
    • F01D25/183—Sealing means

Definitions

  • the invention relates to a storage chamber arrangement for a gas turbine shaft, with at least three labyrinth seals provided on both sides of the bearing, each of which delimits on both sides a blocking chamber into which a sealing air flow is introduced, and an adjacent ventilation chamber from which the labyrinth Seal air that has passed through is discharged through a ventilation line.
  • Such a storage chamber arrangement is known from US Pat. No. 4,156,342.
  • the sealing air flow primarily serves to cool the storage chamber arrangement, but the same arrangement can also be used to primarily optimally seal the bearing from the environment, i. H. especially to protect against the entry of the hot working gases in the gas turbine.
  • the ventilation line opens into the flow channel of the turbine section of the gas turbine.
  • a control device for monitoring the risk of oil fire can be provided in the ventilation line.
  • this control element is designed as a temperature sensor.
  • the reference numeral 1 denotes the shaft of a gas turbine - which, as usual, has a compressor section, a combustion chamber and a turbine section - which is supported by a bearing 2.
  • the bearing chamber 3 surrounding the bearing 2 is to be protected against the entry of hot working gas from the gas turbine.
  • several, but at least three, labyrinth seals 4, 5, 6 are arranged next to one another on both sides of the bearing 2 between the gas turbine shaft 1 and the boundary wall 7, which accommodates the bearing 2, among other things.
  • sealing air is introduced via a feed line 10 according to the arrow, this sealing air flow being branched off from a suitable stage of the compressor section of the gas turbine, not shown. Since sealing air of the same overpressure reaches the blocking chambers 8 provided on both sides of the bearing 2, the supplied sealing air flow is forced into the respective ventilation chambers 9 via the central labyrinth seals 5. The sealing air is discharged from this ventilation chamber according to the direction of arrow 11 via a ventilation line 12.
  • the vent line 12 opens into the flow channel, not shown, of the gas turbine, specifically in the turbine section.
  • This has the advantage that the sealing air discharged from the ventilation chamber 9 via the ventilation line 12 does work in the turbine section, i. H. there is an improvement in the efficiency of the gas turbine compared to the known prior art, in which the sealing air flow discharged from the ventilation chamber 9 is discharged directly into the environment. Furthermore, any risk of oil fire formation in the rotor interior is excluded.
  • control element is not shown here, but can be designed as a simple temperature sensor, the signals of which are fed to evaluation electronics or pilot electronics. Although there is basically always the risk of an oil fire in the ventilation space, this can be detected much more reliably with the help of the control body. Then it is possible to take corrective measures via the engine control and - to limit damage - if these do not have sufficient effect, switch off the engine. In addition, the evaluation electronics can take possible steps to reduce this risk in the event of an oil fire hazard. In addition, a variety of other additions and modifications are of course possible without leaving the content of the claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Rolling Contact Bearings (AREA)
EP96110556A 1995-07-07 1996-06-29 Arrangement de chambre pour palier d'arbre de turbine à gaz Withdrawn EP0752515A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19524732 1995-07-07
DE1995124732 DE19524732A1 (de) 1995-07-07 1995-07-07 Lagerkammer-Anordnung für eine Gasturbinen-Welle

Publications (2)

Publication Number Publication Date
EP0752515A2 true EP0752515A2 (fr) 1997-01-08
EP0752515A3 EP0752515A3 (fr) 1998-12-23

Family

ID=7766227

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96110556A Withdrawn EP0752515A3 (fr) 1995-07-07 1996-06-29 Arrangement de chambre pour palier d'arbre de turbine à gaz

Country Status (2)

Country Link
EP (1) EP0752515A3 (fr)
DE (1) DE19524732A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1092839A1 (fr) * 1998-06-04 2001-04-18 Mitsubishi Heavy Industries, Ltd. Système de vapeur de barrage pour prévenir les déformations structurelles d'une turbine à vapeur
WO2001027444A1 (fr) * 1999-10-12 2001-04-19 Alm Development, Inc. Corps de palier pour turbomachine
DE19956919A1 (de) * 1999-11-26 2001-05-31 Rolls Royce Deutschland Gasturbinen-Triebwerk mit einer Lagerkammer
WO2001031235A3 (fr) * 1999-10-27 2002-02-21 Allied Signal Inc Joint tampon de carter d'huile
US8689562B2 (en) 2009-09-13 2014-04-08 Donald W. Kendrick Combustion cavity layouts for fuel staging in trapped vortex combustors
DE102015117773A1 (de) 2015-10-19 2017-04-20 Rolls-Royce Deutschland Ltd & Co Kg Strahltriebwerk mit mehreren Kammern und einem Lagerkammerträger

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2919891A (en) * 1957-06-17 1960-01-05 Gen Electric Gas turbine diaphragm assembly
GB1501348A (en) * 1975-10-14 1978-02-15 Westinghouse Canada Ltd Cooling of bearings in gas turbine engines
US4156342A (en) * 1976-06-11 1979-05-29 Westinghouse Canada Limited Cooling apparatus for a bearing in a gas turbine
US4542623A (en) * 1983-12-23 1985-09-24 United Technologies Corporation Air cooler for providing buffer air to a bearing compartment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4358926A (en) * 1978-09-05 1982-11-16 Teledyne Industries, Inc. Turbine engine with shroud cooling means

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2919891A (en) * 1957-06-17 1960-01-05 Gen Electric Gas turbine diaphragm assembly
GB1501348A (en) * 1975-10-14 1978-02-15 Westinghouse Canada Ltd Cooling of bearings in gas turbine engines
US4156342A (en) * 1976-06-11 1979-05-29 Westinghouse Canada Limited Cooling apparatus for a bearing in a gas turbine
US4542623A (en) * 1983-12-23 1985-09-24 United Technologies Corporation Air cooler for providing buffer air to a bearing compartment

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1092839A1 (fr) * 1998-06-04 2001-04-18 Mitsubishi Heavy Industries, Ltd. Système de vapeur de barrage pour prévenir les déformations structurelles d'une turbine à vapeur
US6244816B1 (en) 1998-06-04 2001-06-12 Mitsubishi Heavy Industries, Ltd. Gland portion deformation preventing structure of low pressure steam turbine
CN1296601C (zh) * 1998-06-04 2007-01-24 三菱重工业株式会社 防止低压汽轮机的密封压盖部变形的结构
WO2001027444A1 (fr) * 1999-10-12 2001-04-19 Alm Development, Inc. Corps de palier pour turbomachine
WO2001031235A3 (fr) * 1999-10-27 2002-02-21 Allied Signal Inc Joint tampon de carter d'huile
DE19956919A1 (de) * 1999-11-26 2001-05-31 Rolls Royce Deutschland Gasturbinen-Triebwerk mit einer Lagerkammer
US6516618B1 (en) 1999-11-26 2003-02-11 Rolls-Royce Deutschland Ltd & Co. Kg Gas-turbine engine with a bearing chamber
US8689562B2 (en) 2009-09-13 2014-04-08 Donald W. Kendrick Combustion cavity layouts for fuel staging in trapped vortex combustors
US8689561B2 (en) 2009-09-13 2014-04-08 Donald W. Kendrick Vortex premixer for combustion apparatus
DE102015117773A1 (de) 2015-10-19 2017-04-20 Rolls-Royce Deutschland Ltd & Co Kg Strahltriebwerk mit mehreren Kammern und einem Lagerkammerträger
EP3159490A1 (fr) 2015-10-19 2017-04-26 Rolls-Royce Deutschland Ltd & Co KG Moteur à réaction comprenant plusieurs chambres et un support de logement de palier
US10458276B2 (en) 2015-10-19 2019-10-29 Rolls-Royce Deutschland Ltd & Co Kg Jet engine with multiple chambers and a bearing chamber support

Also Published As

Publication number Publication date
EP0752515A3 (fr) 1998-12-23
DE19524732A1 (de) 1997-01-09

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