GB1505534A - Turbines and compressors - Google Patents

Turbines and compressors

Info

Publication number
GB1505534A
GB1505534A GB11549/75A GB1154975A GB1505534A GB 1505534 A GB1505534 A GB 1505534A GB 11549/75 A GB11549/75 A GB 11549/75A GB 1154975 A GB1154975 A GB 1154975A GB 1505534 A GB1505534 A GB 1505534A
Authority
GB
United Kingdom
Prior art keywords
seal
rotor
vanes
march
casing
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
GB11549/75A
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.)
MAN AG
Original Assignee
MAN Maschinenfabrik Augsburg Nuernberg AG
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 MAN Maschinenfabrik Augsburg Nuernberg AG filed Critical MAN Maschinenfabrik Augsburg Nuernberg AG
Publication of GB1505534A publication Critical patent/GB1505534A/en
Priority claimed from US05/957,290 external-priority patent/US4370094A/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
    • 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
    • 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
    • F01D11/10—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using sealing fluid, e.g. steam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/44—Free-space packings
    • F16J15/447—Labyrinth packings
    • F16J15/4472—Labyrinth packings with axial path

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

1505534 Turbines; compressors MASCHINENFABRIK AUGSBURG-NURNBERG AG 20 March 1975 [21 March 1974] 11549/75 Headings F1C and FIT To reduce the vibrations induced in a gas or steam turbine or compressor, e.g. in rotor 4, by the circumferential flow component in the direction of rotor rotation of leakage flow through a labyrinth or proximity seal 5, e.g. between the rotor blade shroud 3 and the casing 2, means are provided upstream of, or in, the seal to eliminate, or reverse the direction of, this circumferential flow component, or to increase an oppositely directed component. As shown, inclined vanes 7a are fixed upstream of the seal on the casing 2 to direct the leakage flow in a counter-rotation direction. Again, axial vanes may be provided upstream or in the seal, Figs. 3a, 4, (not shown). Again, a blocking fluid, e.g. steam, may be directed at the seal through inclined jets (8), Fig. 7, (not shown). The seal may be between the rotor shaft and guide vanes 10.
GB11549/75A 1974-03-21 1975-03-20 Turbines and compressors Expired GB1505534A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE2413655A DE2413655C3 (en) 1974-03-21 1974-03-21 Device for dynamic stabilization of the rotor of a gas or steam turbine
US56223575A 1975-03-26 1975-03-26
US71624676A 1976-08-20 1976-08-20
US05/957,290 US4370094A (en) 1974-03-21 1978-11-02 Method of and device for avoiding rotor instability to enhance dynamic power limit of turbines and compressors

Publications (1)

Publication Number Publication Date
GB1505534A true GB1505534A (en) 1978-03-30

Family

ID=27431835

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11549/75A Expired GB1505534A (en) 1974-03-21 1975-03-20 Turbines and compressors

Country Status (11)

Country Link
JP (1) JPS5949401B2 (en)
AT (1) AT391918B (en)
CH (1) CH589787A5 (en)
CS (1) CS190320B2 (en)
DD (1) DD119847A5 (en)
DE (1) DE2413655C3 (en)
FR (1) FR2264964A1 (en)
GB (1) GB1505534A (en)
IN (1) IN144140B (en)
NL (1) NL176388C (en)
SE (1) SE410488B (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0094529B1 (en) * 1982-05-10 1987-08-12 General Electric Company Rotor stabilizing labyrinth seals for steam turbines
US6109618A (en) * 1997-05-07 2000-08-29 Kalsi Engineering, Inc. Rotary seal with enhanced lubrication and contaminant flushing
GB2451568A (en) * 2007-07-31 2009-02-04 Gen Electric Seal tooth arrangement for gas turbine engine rotor blade tip shroud
ITCO20120019A1 (en) * 2012-04-27 2013-10-28 Nuovo Pignone Srl LABYRINTH HIGHLY DAMPENED SEALS WITH HELICOIDAL AND CYLINDRICAL-MIXED SHAPE
US8727713B2 (en) 2010-03-26 2014-05-20 Hitachi, Ltd. Rotor oscillation preventing structure and steam turbine using the same
EP2840229A1 (en) * 2013-08-23 2015-02-25 Siemens Aktiengesellschaft Flow guide within a steam turbine seal
EP2749797A4 (en) * 2011-10-21 2015-08-19 Mitsubishi Heavy Ind Ltd Seal device
EP2982832A4 (en) * 2013-04-03 2016-12-21 Mitsubishi Heavy Ind Ltd Rotating machine
RU2624691C1 (en) * 2016-05-10 2017-07-05 Акционерное общество "Научно-производственный центр газотурбостроения "Салют" (АО "НПЦ газотурбостроения "Салют") Device for cooling sealing flanges of turbine rotor blade platforms
CN112610287A (en) * 2020-12-29 2021-04-06 中国神华能源股份有限公司国华电力分公司 High pressure steam turbine blade top gland structure
CN112796841A (en) * 2020-12-25 2021-05-14 东方电气集团东方汽轮机有限公司 Structure for reducing steam leakage of gap bridge steam seal
CN113606344A (en) * 2021-07-30 2021-11-05 西安交通大学 Labyrinth seal based on optimized rotor dynamic characteristics of inter-tooth anti-rotation plate

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5311202A (en) * 1976-07-19 1978-02-01 Hitachi Ltd Steam turbine step-setting structure
GB1560974A (en) * 1977-03-26 1980-02-13 Rolls Royce Sealing system for rotors
JPS53122002A (en) * 1977-03-31 1978-10-25 Hitachi Ltd Seal device
FR2406074A1 (en) * 1977-10-11 1979-05-11 Snecma SAFETY DEVICE FOR AXIAL ROTATING MACHINE
JPS5841037Y2 (en) * 1979-10-21 1983-09-16 三菱重工業株式会社 Two-stage washing compression dehydration equipment
JPS58178262A (en) * 1982-04-12 1983-10-19 Mitsubishi Electric Corp Voltage divider
JPS58165201U (en) * 1982-04-30 1983-11-02 三菱重工業株式会社 Turbine blade seal structure
JPS601306A (en) * 1983-06-16 1985-01-07 Toshiba Corp Axial flow turbine
JPS6029450A (en) * 1983-07-26 1985-02-14 Kanto Tokushu Seikou Kk Tool steel for cold working
JPS6052306U (en) * 1983-09-05 1985-04-12 三菱重工業株式会社 Labyrinth seal for turbo machinery
CH669241A5 (en) * 1985-11-27 1989-02-28 Sulzer Ag AXIAL PUSH COMPENSATING DEVICE FOR LIQUID PUMP.
DE59201833D1 (en) * 1991-10-08 1995-05-11 Asea Brown Boveri Shroud for turbine with axial flow.
FR2687429B1 (en) * 1992-02-17 1994-04-01 Gec Alsthom Sa METHOD AND DEVICE FOR REMOVING THE INSTABILITY OF A STEAM TURBINE.
DE4331779A1 (en) * 1993-09-18 1995-03-23 Abb Management Ag Method and device for reducing the gap-flow mixing losses and gap excitation in rotary thermal machines
EP0903468B1 (en) * 1997-09-19 2003-08-20 ALSTOM (Switzerland) Ltd Gap sealing device
EP0943849A1 (en) 1998-03-19 1999-09-22 Asea Brown Boveri AG Contactless seal for turbomachines
DE59808709D1 (en) 1998-11-10 2003-07-17 Alstom Switzerland Ltd Tip seal for turbine blades
EP1001139B1 (en) 1998-11-10 2004-01-07 ALSTOM (Switzerland) Ltd Turbine blade tip sealing
DE102008060706A1 (en) * 2008-12-05 2010-06-10 Man Turbo Ag Nozzle segment for a steam turbine
JP5517530B2 (en) * 2009-09-03 2014-06-11 三菱重工業株式会社 Turbine
DE102009042857A1 (en) * 2009-09-24 2011-03-31 Rolls-Royce Deutschland Ltd & Co Kg Gas turbine with shroud labyrinth seal
DE102009052314A1 (en) * 2009-11-07 2011-05-12 Mtu Aero Engines Gmbh Sealing arrangement for a gas turbine and such a gas turbine
JP5643245B2 (en) * 2012-02-27 2014-12-17 三菱日立パワーシステムズ株式会社 Turbo machine
JP6827346B2 (en) * 2017-03-13 2021-02-10 三菱重工業株式会社 Axial turbine
JP6986426B2 (en) * 2017-11-29 2021-12-22 三菱重工業株式会社 Turbine
JP6924233B2 (en) * 2019-08-30 2021-08-25 三菱パワー株式会社 Rotating machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE490276C (en) * 1927-05-31 1930-01-25 Carl Schmieske Labyrinth seal for steam and gas turbines
DE650759C (en) * 1935-04-05 1937-09-30 Rudolf Loewenstein Dipl Ing Gap seal for rotating machines
US3132906A (en) * 1959-08-26 1964-05-12 Gen Electric Hydrodynamic devices
JPS501646B1 (en) * 1970-07-11 1975-01-20
JPS476263U (en) * 1971-02-12 1972-09-21
CH528010A (en) * 1971-02-19 1972-09-15 Bbc Brown Boveri & Cie Process for influencing the vibration behavior

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0094529B1 (en) * 1982-05-10 1987-08-12 General Electric Company Rotor stabilizing labyrinth seals for steam turbines
US6109618A (en) * 1997-05-07 2000-08-29 Kalsi Engineering, Inc. Rotary seal with enhanced lubrication and contaminant flushing
GB2451568A (en) * 2007-07-31 2009-02-04 Gen Electric Seal tooth arrangement for gas turbine engine rotor blade tip shroud
GB2451568B (en) * 2007-07-31 2012-06-27 Gen Electric Rotor blade
US8727713B2 (en) 2010-03-26 2014-05-20 Hitachi, Ltd. Rotor oscillation preventing structure and steam turbine using the same
EP2749797A4 (en) * 2011-10-21 2015-08-19 Mitsubishi Heavy Ind Ltd Seal device
RU2616428C2 (en) * 2012-04-27 2017-04-14 Нуово Пиньоне СРЛ Labyrinth seal of spiral and mixed spiral cylindrical configuration with high damping capacity
ITCO20120019A1 (en) * 2012-04-27 2013-10-28 Nuovo Pignone Srl LABYRINTH HIGHLY DAMPENED SEALS WITH HELICOIDAL AND CYLINDRICAL-MIXED SHAPE
WO2013160469A1 (en) * 2012-04-27 2013-10-31 Nuovo Pignone Srl High damping labyrinth seal with helicoidal or helicoidal-cylindrical mixed pattern
US9695704B2 (en) 2012-04-27 2017-07-04 Nuovo Pignone Srl High damping labyrinth seal with helicoidal and helicoidal-cylindrical mixed pattern
CN104471293A (en) * 2012-04-27 2015-03-25 诺沃皮尼奥内股份有限公司 High damping labyrinth seal with helicoidal or helicoidal-cylindrical mixed pattern
EP2982832A4 (en) * 2013-04-03 2016-12-21 Mitsubishi Heavy Ind Ltd Rotating machine
US10247025B2 (en) 2013-04-03 2019-04-02 Mitsubishi Heavy Industries, Ltd. Rotating machine
EP2840229A1 (en) * 2013-08-23 2015-02-25 Siemens Aktiengesellschaft Flow guide within a steam turbine seal
RU2624691C1 (en) * 2016-05-10 2017-07-05 Акционерное общество "Научно-производственный центр газотурбостроения "Салют" (АО "НПЦ газотурбостроения "Салют") Device for cooling sealing flanges of turbine rotor blade platforms
CN112796841A (en) * 2020-12-25 2021-05-14 东方电气集团东方汽轮机有限公司 Structure for reducing steam leakage of gap bridge steam seal
CN112796841B (en) * 2020-12-25 2022-03-15 东方电气集团东方汽轮机有限公司 Structure for reducing steam leakage of gap bridge steam seal
CN112610287A (en) * 2020-12-29 2021-04-06 中国神华能源股份有限公司国华电力分公司 High pressure steam turbine blade top gland structure
CN113606344A (en) * 2021-07-30 2021-11-05 西安交通大学 Labyrinth seal based on optimized rotor dynamic characteristics of inter-tooth anti-rotation plate
CN113606344B (en) * 2021-07-30 2022-12-09 西安交通大学 Labyrinth seal based on optimized rotor dynamic characteristics of inter-tooth anti-rotation plate

Also Published As

Publication number Publication date
SE410488B (en) 1979-10-15
ATA215875A (en) 1990-06-15
FR2264964A1 (en) 1975-10-17
DD119847A5 (en) 1976-05-12
AT391918B (en) 1990-12-27
FR2264964B1 (en) 1979-03-02
JPS5949401B2 (en) 1984-12-03
DE2413655A1 (en) 1975-10-02
SE7503311L (en) 1975-09-22
JPS50128008A (en) 1975-10-08
NL176388C (en) 1985-04-01
IN144140B (en) 1978-04-01
NL7501673A (en) 1975-09-23
CH589787A5 (en) 1977-07-15
DE2413655C3 (en) 1978-05-03
DE2413655B2 (en) 1977-09-08
NL176388B (en) 1984-11-01
CS190320B2 (en) 1979-05-31

Similar Documents

Publication Publication Date Title
GB1505534A (en) Turbines and compressors
US3575523A (en) Labyrinth seal for axial flow fluid machines
US4752185A (en) Non-contacting flowpath seal
GB731822A (en) Improvements relating to turbines or compressors for operation with gaseous fluids
GB1342663A (en) Steam turbine stage
GB1351029A (en) Turbo machinery blade cooling
GB1525746A (en) Gas turbine engines including labyrinth seals
GB1008526A (en) Axial flow bladed rotor, e.g. for a turbine
CN105587346A (en) Sealing device and turbo machine
GB1219994A (en) Turbine for a compressible medium
GB1491556A (en) Rotor blades for turbomachines
GB1259963A (en) Improvements in fluid handling machines such as compressors, fans and turbines
GB1081458A (en) Blade assembly for a fluid flow machine such as a gas turbine engine
GB1314853A (en) Stator blading for turbomachinery
GB1528421A (en) Shroud for rotor or impeller of a turbine or compressor with abradable seal layer on inside to establish minimized running clearance
GB925968A (en) Gas turbine
FR2323007A1 (en) Turbine blade cooling by fluid leakage through void by blade root - has void wall, with inclined coutlet bore, radial to blade platform
KR930021928A (en) Axial flow turbine
US3756740A (en) Turbine stage
GB777955A (en) Improvements in or relating to fluid flow machines such as hydraulic, steam or gas turbines or axial-flow compressors
GB1045689A (en) Exhaust scroll for axial flow turbomachines, such as turbines and compressors
GB1491480A (en) Fixing blades for fluid flow machines
GB1256486A (en)
GB797445A (en) Improvements in or relating to rotary fluid machines, for example turbines and compressors
GB1305431A (en)

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19950319