EP0088944B1 - Axial beaufschlagte Dampfturbine, insbesondere in zweiflutiger Ausführung - Google Patents

Axial beaufschlagte Dampfturbine, insbesondere in zweiflutiger Ausführung Download PDF

Info

Publication number
EP0088944B1
EP0088944B1 EP83102038A EP83102038A EP0088944B1 EP 0088944 B1 EP0088944 B1 EP 0088944B1 EP 83102038 A EP83102038 A EP 83102038A EP 83102038 A EP83102038 A EP 83102038A EP 0088944 B1 EP0088944 B1 EP 0088944B1
Authority
EP
European Patent Office
Prior art keywords
shaft
steam
steam turbine
flow
nozzles
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
EP83102038A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0088944A1 (de
Inventor
Herbert Keller
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.)
Siemens AG
Original Assignee
Kraftwerk Union AG
Siemens 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6158377&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0088944(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kraftwerk Union AG, Siemens AG filed Critical Kraftwerk Union AG
Priority to AT83102038T priority Critical patent/ATE16303T1/de
Publication of EP0088944A1 publication Critical patent/EP0088944A1/de
Application granted granted Critical
Publication of EP0088944B1 publication Critical patent/EP0088944B1/de
Expired legal-status Critical Current

Links

Images

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
    • F01D3/00—Machines or engines with axial-thrust balancing effected by working-fluid
    • F01D3/02—Machines or engines with axial-thrust balancing effected by working-fluid characterised by having one fluid flow in one axial direction and another fluid flow in the opposite direction
    • 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
    • F01D25/08—Cooling; Heating; Heat-insulation
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/08—Heating, heat-insulating or cooling means

Definitions

  • the invention relates to an axially loaded steam turbine according to the preamble of claim 1.
  • Such a steam turbine is known from FR-A-851 531.
  • a shaft shield is arranged in the region of the steam inflow taking place in the axial center, which shaft shield is attached to the radially inner ends of the guide vanes of the first guide vane rings of both flows.
  • the shaft shield enclosing the shaft at a distance is formed on the outer circumference in such a way that the steam flowing in in the radial direction is divided equally between the two floods and deflected in the axial direction. The shaft shielding thus prevents an immediate flow against the shaft surface by the steam flowing in in the radial direction.
  • the invention is based on the object, in an axially loaded steam turbine of the type mentioned, to further reduce the thermal stresses of the shaft in the region of the steam inflow, likewise without the use of cooling steam generated externally to the turbine, but in this case the shaft shielding ring itself as a device for pressure and Take advantage of lowering the temperature of the live steam.
  • a small partial flow of the total inflowing steam is fed through tangentially arranged nozzles to the shaft area under the shaft shield.
  • the speed at which this partial flow enters the annular channel formed between the shaft and the shaft shield corresponds to the gradient processed in the first guide vane ring.
  • the nozzles introduced into the shaft shielding are aligned with respect to the direction of rotation of the shaft in such a way that the swirl flow which forms in the ring channel leads the shaft circumferential speed.
  • the boundary layer temperature on the shaft corresponds to the static temperature of the steam which is reduced by the increase in the kinetic energy, increased by the proportion of the damming temperature of the comparatively low relative speed between the swirl flow and the shaft circumferential speed. Effective cooling of the shaft in the area of the steam inflow and in the area of the blade attachment of the first blade ring can thus be achieved by the nozzles introduced tangentially into the shaft shield.
  • incoming partial flow is then divided equally into two swirl flows, which each flow in the axial direction along the shaft up to the first rotor blade ring.
  • a further improvement in the cooling effect can be achieved in that the first stage is designed as a weak reaction stage or, in the case of a double-flow version, that the first stage is designed as a weak reaction stage in both floods. This is intended to process as large a gradient as possible in the first guide vane ring, so that the static temperature of the partial flow introduced into the ring channel is reduced as much as possible by the corresponding increase in the kinetic energy.
  • the cross section of the nozzles is dimensioned such that the steam mass flow entering the annular duct is approximately 3% of the total steam mass flow supplied in the region of the steam inflow.
  • the nozzles 8 are designed such that, seen in the direction of rotation of the shaft indicated by the arrow 9, they open tangentially into the annular channel 4 formed between the shaft 5 and the shaft shield 6. Since the partial flow diverted from the inflowing steam enters tangentially into the ring channel 4 through the nozzles 8, a swirl flow indicated by the arrow 10 forms there, which leads the wave circumferential speed.
  • the swirl flow 10 is then divided into two swirl flows starting from the axial center M, which are indicated in FIG. 1 by the arrows 11 and 11 'and along the shaft 5 as far as the rotor blades 12 and 12' of the respective first rotor blade ring of the two floods.
  • the speed at which the partial flow diverted from the incoming steam enters the nozzles 8 thus corresponds to the gradient processed in the first guide vane ring of the two floods, and this speed of entry can be increased by eliminating the respective first stage as a weak reaction stage.
  • the shaft shield 6 prevents a direct flow against the surface of the shaft 5 by the hot steam flowing radially in the direction of the arrow 1.
  • the boundary layer temperature of the swirl flows 10 or 11 and 11 'in the ring channel 4 corresponds to the static temperature of the steam reduced by the increase in the kinetic energy, increased by the accumulation temperature portion of the relative speed between the swirl flow 10 or 11 and 11' and the shaft circumferential speed.
  • the congestion temperature proportion is low, since the relative speed mentioned is also comparatively low due to the selected orientation of the nozzles 8.
  • the steam mass flow entering the annular duct 4 through the nozzles 8 is approximately 3% of the total steam mass flow supplied through the inflow duct 2.
  • the temperature drop in the area of the shaft 5 below the shaft shield 6 is 20 ° K at the beginning of the swirl field in the axial center M and at 10 to 15 ° K at the respective end of the swirl field compared to the temperature of the incoming steam.
  • the increase in consumption required for this cooling of the shaft is approximately 0.06% and thus corresponds to the values which can be achieved with external cooling by cooling steam introduced from the outside.
  • the slight reduction in the cooling effect at the respective end of the swirl field can possibly be avoided by an additional row of blades arranged on the shaft 5. This row of moving blades arranged in the axial center M and in the annular channel 4 could expediently be designed as a free jet turbine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
EP83102038A 1982-03-16 1983-03-02 Axial beaufschlagte Dampfturbine, insbesondere in zweiflutiger Ausführung Expired EP0088944B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83102038T ATE16303T1 (de) 1982-03-16 1983-03-02 Axial beaufschlagte dampfturbine, insbesondere in zweiflutiger ausfuehrung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3209506 1982-03-16
DE19823209506 DE3209506A1 (de) 1982-03-16 1982-03-16 Axial beaufschlagte dampfturbine, insbesondere in zweiflutiger ausfuehrung

Publications (2)

Publication Number Publication Date
EP0088944A1 EP0088944A1 (de) 1983-09-21
EP0088944B1 true EP0088944B1 (de) 1985-10-30

Family

ID=6158377

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83102038A Expired EP0088944B1 (de) 1982-03-16 1983-03-02 Axial beaufschlagte Dampfturbine, insbesondere in zweiflutiger Ausführung

Country Status (9)

Country Link
US (1) US4571153A (es)
EP (1) EP0088944B1 (es)
JP (1) JPS58167802A (es)
AR (1) AR229899A1 (es)
AT (1) ATE16303T1 (es)
BR (1) BR8301277A (es)
DE (2) DE3209506A1 (es)
ES (1) ES520606A0 (es)
IN (1) IN158028B (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6048169A (en) * 1996-06-21 2000-04-11 Siemens Aktiengesellschaft Turbine shaft and method for cooling a turbine shaft
CN107002494A (zh) * 2014-10-15 2017-08-01 西门子公司 涡轮轴的可控冷却

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59153901A (ja) * 1983-02-21 1984-09-01 Fuji Electric Co Ltd 蒸気タ−ビンロ−タの冷却装置
DE3424139C2 (de) * 1984-06-30 1996-02-22 Bbc Brown Boveri & Cie Gasturbinenrotor
US4764084A (en) * 1987-11-23 1988-08-16 Westinghouse Electric Corp. Inlet flow guide for a low pressure turbine
DE19620828C1 (de) * 1996-05-23 1997-09-04 Siemens Ag Turbinenwelle sowie Verfahren zur Kühlung einer Turbinenwelle
US6595117B1 (en) * 1999-08-04 2003-07-22 The Frymaster Corporation High speed variable size toaster
US6854954B2 (en) * 2003-03-03 2005-02-15 General Electric Company Methods and apparatus for assembling turbine engines
US20070065273A1 (en) * 2005-09-22 2007-03-22 General Electric Company Methods and apparatus for double flow turbine first stage cooling
US7322789B2 (en) * 2005-11-07 2008-01-29 General Electric Company Methods and apparatus for channeling steam flow to turbines
EP1895094B1 (de) * 2006-08-25 2010-09-29 Siemens Aktiengesellschaft Drallgekühlte Rotor-Schweissnaht
US7874795B2 (en) * 2006-09-11 2011-01-25 General Electric Company Turbine nozzle assemblies
US8317458B2 (en) * 2008-02-28 2012-11-27 General Electric Company Apparatus and method for double flow turbine tub region cooling
US8096748B2 (en) * 2008-05-15 2012-01-17 General Electric Company Apparatus and method for double flow turbine first stage cooling
US8167535B2 (en) * 2008-07-24 2012-05-01 General Electric Company System and method for providing supercritical cooling steam into a wheelspace of a turbine
US8414252B2 (en) * 2010-01-04 2013-04-09 General Electric Company Method and apparatus for double flow turbine first stage cooling
US8657562B2 (en) * 2010-11-19 2014-02-25 General Electric Company Self-aligning flow splitter for steam turbine
EP3056663A1 (de) * 2015-02-10 2016-08-17 Siemens Aktiengesellschaft Axial beaufschlagte Dampfturbine, insbesondere in zweiflutiger Ausführung
DE102015215144B4 (de) * 2015-08-07 2017-11-09 MTU Aero Engines AG Vorrichtung und Verfahren zum Beeinflussen der Temperaturen in Innenringsegmenten einer Gasturbine
JP6204966B2 (ja) * 2015-12-24 2017-09-27 三菱日立パワーシステムズ株式会社 蒸気タービン
DE112016006048T5 (de) * 2015-12-24 2018-09-20 Mitsubishi Hitachi Power Systems, Ltd. Dampfturbine
JP6204967B2 (ja) * 2015-12-24 2017-09-27 三菱日立パワーシステムズ株式会社 蒸気タービン
US20180080324A1 (en) * 2016-09-20 2018-03-22 General Electric Company Fluidically controlled steam turbine inlet scroll

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA536533A (en) * 1957-01-29 E. P. Johnson William Gas turbines
CH159225A (de) * 1930-11-04 1932-12-31 Escher Wyss Maschf Ag Kreiselpumpe.
FR851531A (fr) * 1938-03-15 1940-01-10 Turbine à double circulation à admission intérieure
US3147951A (en) * 1961-05-29 1964-09-08 Garrett Corp Fluid pressure operated turbine
DE1962031U (de) * 1963-01-18 1967-06-15 Siemens Ag Dampfturbine.
CH430757A (de) * 1963-01-18 1967-02-28 Siemens Ag Dampfturbine
US3232580A (en) * 1963-07-18 1966-02-01 Birmann Rudolph Centripetal turbine
US3291447A (en) * 1965-02-15 1966-12-13 Gen Electric Steam turbine rotor cooling
US3429557A (en) * 1966-06-30 1969-02-25 Gen Electric Steam turbine rotor cooling arrangement
NL139802B (nl) * 1968-05-31 1973-09-17 Stork Koninklijke Maschf Turbine voor een compressibel medium.
DE2140490A1 (de) * 1971-07-26 1973-02-01 Bbc Brown Boveri & Cie Einrichtung zur kuehlung des rotors einer dampfturbine
DE2213071B2 (de) * 1972-03-17 1975-05-28 Kraftwerk Union Ag, 4330 Muelheim Leitschaufelloser Leitkanal zur Drallerzeugung vor dem ersten Laufschaufelkranz von Turbinen
JPS5650084B2 (es) * 1972-04-26 1981-11-26
US3994630A (en) * 1974-08-21 1976-11-30 International Harvester Company Monorotor turbine and method of cooling
JPS5215907A (en) * 1975-07-29 1977-02-05 Toshiba Corp Reheat steam turbine rotor cooling system
JPS5374608A (en) * 1976-12-15 1978-07-03 Hitachi Ltd Cooling device for steam turbine
JPS5423805A (en) * 1977-07-26 1979-02-22 Toshiba Corp Reheating-turbine rotor overheat preventive device
DE2928487A1 (de) * 1979-07-14 1981-02-05 Philips Patentverwaltung Verfahren zur messung der relativen feuchte eines messgutes mit hilfe von mikrowellen im ghz-bereich

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6048169A (en) * 1996-06-21 2000-04-11 Siemens Aktiengesellschaft Turbine shaft and method for cooling a turbine shaft
US6102654A (en) * 1996-06-21 2000-08-15 Siemens Aktiengesellschaft Turbomachine and method for cooling a turbomachine
CN107002494A (zh) * 2014-10-15 2017-08-01 西门子公司 涡轮轴的可控冷却

Also Published As

Publication number Publication date
JPS58167802A (ja) 1983-10-04
BR8301277A (pt) 1983-11-22
EP0088944A1 (de) 1983-09-21
ES8401567A1 (es) 1983-12-16
AR229899A1 (es) 1983-12-30
ES520606A0 (es) 1983-12-16
DE3361096D1 (en) 1985-12-05
ATE16303T1 (de) 1985-11-15
US4571153A (en) 1986-02-18
DE3209506A1 (de) 1983-09-22
IN158028B (es) 1986-08-16
JPH0440522B2 (es) 1992-07-03

Similar Documents

Publication Publication Date Title
EP0088944B1 (de) Axial beaufschlagte Dampfturbine, insbesondere in zweiflutiger Ausführung
EP0170938B1 (de) Schaufel- und Dichtspaltoptimierungseinrichtung für Verdichter von Gasturbinentriebwerken, insbesondere Gasturbinenstrahltriebwerken
DE60318792T2 (de) Zapfluft-Gehäuse für einen Verdichter
DE112011104298B4 (de) Gasturbinenmotor mit Sekundärluftstromkreis
DE60133629T2 (de) Verfahren zum betrieb einer gasturbine mit verstellbaren leitschaufeln
DE60031744T2 (de) Turbinenbrennkammeranordnung
DE3713923C2 (de) Kühlluft-Übertragungsvorrichtung
DE2943464A1 (de) Dichtungsvorrichtung fuer ein gasturbinentriebwerk
DE2147537A1 (de) Kühleinrichtung für die Enden von Turbinenlaufschaufeln mit Luftexpansion
DE1626130A1 (de) Gasturbinentriebwerksanlage
DE102008044471A1 (de) Kompressionslabyrinthdichtung und Turbine mit dieser
DE2913548A1 (de) Gasturbinentriebwerk
CH702000A2 (de) Wirbelkammern zur Spaltströmungssteuerung.
EP0397768B1 (de) Turbine eines abgasturboladers
DE3116923C2 (es)
EP2407652A1 (de) Gasturbine mit einem Sekundärluftsystem und Verfahren zum Betreiben einer solchen Gasturbine
CH709266B1 (de) Turbinenschaufel und Verfahren zum Auswuchten eines Spitzendeckbandes einer Turbinenschaufel und Gasturbine.
EP3287611B1 (de) Gasturbine
DE3428206C2 (de) Statoranordnung in einer Gasturbine
CH663251A5 (de) Einrichtung zur kuehlung der rotoren von dampfturbinen.
EP3561228A1 (de) Schaufel, schaufelsegment und baugruppe für eine turbomaschine und turbomaschine
DE10392802B4 (de) Dampfturbine
DE102017105760A1 (de) Gasturbine, Leitschaufelkranz einer Gasturbine und Verfahren zum Herstellen desselben
EP2358979B1 (de) Axialverdichter für eine gasturbine mit passiver radialspaltkontrolle
DE102016222097A1 (de) Treibstoffdüse einer Gasturbine mit Drallerzeuger

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT CH DE FR IT LI NL

17P Request for examination filed

Effective date: 19831007

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

AK Designated contracting states

Designated state(s): AT CH DE FR IT LI NL

REF Corresponds to:

Ref document number: 16303

Country of ref document: AT

Date of ref document: 19851115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3361096

Country of ref document: DE

Date of ref document: 19851205

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

26 Opposition filed

Opponent name: BBC AKTIENGESELLSCHAFT BROWN,BOVERI & CIE.

Effective date: 19860729

R26 Opposition filed (corrected)

Opponent name: BBC AKTIENGESELLSCHAFT BROWN,BOVERI & CIE.

Effective date: 19860729

NLR1 Nl: opposition has been filed with the epo

Opponent name: BBC AKTIENGESELLSCHAFT BROWN,BOVERI & CIE.

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT BERLIN UND MUENCHEN

NLT2 Nl: modifications (of names), taken from the european patent patent bulletin

Owner name: SIEMENS AKTIENGESELLSCHAFT TE BERLIJN EN MUENCHEN,

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19880304

NLR2 Nl: decision of opposition
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19890224

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19890331

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19900302

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19901001

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020326

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20020521

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20020610

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20030301

Ref country code: CH

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20030301

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO