EP0961869A1 - Etancheification de brides dans la section d'admission d'une enveloppe de turbine - Google Patents

Etancheification de brides dans la section d'admission d'une enveloppe de turbine

Info

Publication number
EP0961869A1
EP0961869A1 EP98909288A EP98909288A EP0961869A1 EP 0961869 A1 EP0961869 A1 EP 0961869A1 EP 98909288 A EP98909288 A EP 98909288A EP 98909288 A EP98909288 A EP 98909288A EP 0961869 A1 EP0961869 A1 EP 0961869A1
Authority
EP
European Patent Office
Prior art keywords
inflow section
turbine
sealing surface
housing
flow openings
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
EP98909288A
Other languages
German (de)
English (en)
Other versions
EP0961869B1 (fr
Inventor
Klaus Lochner
Hartmut Schreiber
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
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
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0961869A1 publication Critical patent/EP0961869A1/fr
Application granted granted Critical
Publication of EP0961869B1 publication Critical patent/EP0961869B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F01D25/243—Flange connections; Bolting arrangements
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/141—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path
    • F01D17/145—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path by means of valves, e.g. for steam turbines
    • 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
    • F05D2240/00—Components
    • F05D2240/40—Use of a multiplicity of similar components

Definitions

  • the invention relates to an inflow section of a turbine housing of a steam turbine, in particular an industrial turbine.
  • a steam turbine In a steam turbine, steam serving as the flow medium is expanded to perform condensation until condensation occurs.
  • a steam turbine or flow turbine with a mechanical power of z. B. 5 to 100 MW is usually used as an industrial turbine.
  • an industrial turbine is also provided with an inflow section via which the steam turbine is supplied
  • Live steam flows into the turbine housing.
  • the live steam flow is adjusted by means of a number of control valves, which are arranged as single or group control valves in a valve housing connected to the inflow section of the turbine housing via a flange.
  • a corresponding flange connection with a single flow opening is e.g. known from CH 665 450 A5.
  • the invention is therefore based on the object of specifying an inflow section of a turbine housing which has a particularly suitable seal to an attached valve housing.
  • sealing surfaces in the inflow section on the one hand and in the control valve housing on the other are combined to form a sealing surface common to all throughflow openings and expediently have a waisted in the area between adjacent throughflow openings
  • the flange connection advantageously has on the one hand an arrangement of screw holes adapted to the outer contour of the sealing surface.
  • a number of screw holes with at least two different diameters are provided for screws corresponding to different dimensions along the outer contour of the sealing surface of each flow opening.
  • a tongue and groove engagement is provided within the flange connection in the area of the sealing surfaces, each of z. B. four flow openings has a shoulder contour for supporting a corresponding collar contour of the valve housing.
  • the advantages achieved by the invention consist in particular in that a particularly reliable seal between the turbine housing and the control valve housing is achieved by designing a sealing surface in such a way that it completely surrounds each flow opening associated with a control valve.
  • a particularly high live steam parameters can be realized in a steam turbine having a corresponding turbine housing.
  • a particularly high surface pressure in the sealing surface area is achieved in that, on the one hand, the outer contour of the sealing surface waits in the area between adjacent flow openings is formed, and that, on the other hand, appropriately differently dimensioned screws are arranged equidistantly along this waisted outer contour.
  • FIG. 1 shows a longitudinal section through an inflow section of a turbine housing with a flanged control valve housing
  • FIG. 1 shows the upper region of an inflow section 1 of a turbine housing of a steam turbine, on which a valve housing 2 with four control valves 3 in the exemplary embodiment is placed and screwed to it via a flange connection 4, 5.
  • a number of bolt-shaped screws 6 are provided, which are arranged in the region of a number of through-flow openings 7 corresponding to the number of control valves 3 on the flange periphery. The screws 6 are in threaded engagement with the connecting flange 4 of the inflow section 1.
  • the sealing between the inflow section 1 and the valve housing 2 takes place by surface pressure of two metallic sealing surfaces on one another, which face each other without the interposition of additional sealing material.
  • a circumferential shoulder contour 13 is created in the manner of a tongue and groove connection in the edge region of each throughflow opening 7 of the inflow section 1, into which a corresponding collar contour 14 of the valve housing 2 engages.
  • the inner contour of the sealing surface 15 corresponds to the opening contour of the individual through-flow openings 3 in the exemplary embodiment, so that they are each completely enclosed by the sealing surface 15.
  • the radial web width F of the sealing surface 15 in each flow opening 3 in its outer regions is smaller than the radial web width F '/ 2 in the region between adjacent flow openings 3.
  • the sealing surfaces of the collar contour 14 of the connecting flange 5 of the valve housing 2 are circular, whereby whose web width is slightly smaller than the web width F of the sealing surface 5.
  • the outer contour 16 of the sealing surface 15 is expediently designed to be waisted in the area between the throughflow openings 3 and thereby largely corresponds to the overall contour of the to H o IT- ⁇ L ⁇

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Housings (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

Pour permettre l'obtention, dans une turbine à vapeur, de paramètres de vapeur vive (température de vapeur vive, pression de vapeur vive) particulièrement élevés, la section d'admission (1) de l'enveloppe de turbine présente, à l'intérieur, un joint à brides présentant une pluralité d'ouvertures de passage (7), ledit joint à brides servant à la fixation d'une cage de soupapes (2) pour soupapes de régulation (3) et présentant une surface d'étanchéité (15) entourant chacune des ouvertures de passage (7). Afin que l'étanchéification soit particulièrement fiable, on obtient une pression superficielle élevée dans la zone de la surface d'étanchéité par le fait que, d'une part, le contour extérieur (16) de cette surface d'étanchéité (15) est formé, dans la zone entre deux ouvertures de passage (7) adjacentes, de façon à présenter un rétrécissement en forme de taille, et que, d'autre part, des vis (6), présentant, de façon opportune, des dimensions différentes, sont placées le long de ce contour extérieur (16) pourvu d'une taille.
EP98909288A 1997-02-06 1998-01-27 Etancheification de brides dans la section d'admission d'une enveloppe de turbine Expired - Lifetime EP0961869B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19704556A DE19704556C1 (de) 1997-02-06 1997-02-06 Einströmabschnitt eines Turbinengehäuses
DE19704556 1997-02-06
PCT/DE1998/000239 WO1998035139A1 (fr) 1997-02-06 1998-01-27 Etancheification de brides dans la section d'admission d'une enveloppe de turbine

Publications (2)

Publication Number Publication Date
EP0961869A1 true EP0961869A1 (fr) 1999-12-08
EP0961869B1 EP0961869B1 (fr) 2001-11-14

Family

ID=7819525

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98909288A Expired - Lifetime EP0961869B1 (fr) 1997-02-06 1998-01-27 Etancheification de brides dans la section d'admission d'une enveloppe de turbine

Country Status (7)

Country Link
EP (1) EP0961869B1 (fr)
JP (1) JP4202428B2 (fr)
CN (1) CN1093213C (fr)
BR (1) BR9807666A (fr)
DE (2) DE19704556C1 (fr)
IN (1) IN192464B (fr)
WO (1) WO1998035139A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5988290B2 (ja) * 2012-05-31 2016-09-07 株式会社日立製作所 ケーシング、およびケーシングを備えるターボ機械および圧縮機

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE696942C (de) * 1938-08-02 1940-10-02 Siemens Schuckertwerke Akt Ges Flanschverbindung an Gehaeusen fuer hohe Druecke und Temperaturen, insbesondere von Dampf- und Gasturbinen
DE889899C (de) * 1938-08-16 1953-09-14 Siemens Ag Dampfturbinengehaeuse
BE515804A (fr) * 1951-11-30
CH665450A5 (de) * 1983-06-09 1988-05-13 Bbc Brown Boveri & Cie Ventil fuer horizontale dampfzufuehrung an zweigehaeuseturbinen.
US4592699A (en) * 1984-03-05 1986-06-03 Dresser Industries, Inc. Clamping assembly
US5031314A (en) * 1989-07-28 1991-07-16 Westinghouse Electric Corp. Method of measuring joint gaps and restoring same
DD290703A5 (de) * 1989-12-22 1991-06-06 Veb Bergmann-Borsig,De Einstroemung einer einschaligen dampfturbine mit duesengruppenregelung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9835139A1 *

Also Published As

Publication number Publication date
WO1998035139A1 (fr) 1998-08-13
BR9807666A (pt) 2000-02-15
CN1093213C (zh) 2002-10-23
DE19704556C1 (de) 1998-04-30
EP0961869B1 (fr) 2001-11-14
DE59802141D1 (de) 2001-12-20
JP2001512544A (ja) 2001-08-21
IN192464B (fr) 2004-04-24
JP4202428B2 (ja) 2008-12-24
CN1246910A (zh) 2000-03-08

Similar Documents

Publication Publication Date Title
EP2011965B1 (fr) Dispositif et procédé pour serrer des disques de rotor portant des aubes d'un moteur à réaction
DE3741020A1 (de) Buerstendichtung
DE10159670A1 (de) Wirbelgleichrichter im Hochdruckverdichter einer Gasturbine
EP0397768B1 (fr) Turbine pour turbocompresseur
DE3309268A1 (de) Kuehlvorrichtung fuer turbinen
DE3103842A1 (de) Wirbelkammerfilter zum ausscheiden von feststoffen aus einem gasstrom
DE3005146A1 (de) Druckgasanschluss bei staubgasfiltern
EP0965732B1 (fr) Anneau de sertissage avec prise de vapeur pour turbine
EP2423589A1 (fr) Agencement de brûleur
DE2907694A1 (de) Mischvorrichtung fuer stroemende fluessige, gas- oder dampffoermige medien
EP1235623A1 (fr) Module membranaire de filtration avec echangeur de chaleur integre
EP0961869A1 (fr) Etancheification de brides dans la section d'admission d'une enveloppe de turbine
EP0844367B1 (fr) Rotor soudé pour une turbomachine
DE3405941C2 (de) Turbinenwellen-Dichtungsanordnung
DE1551230C3 (de) Umlenkschaufelgitter in einem ringförmigen Strömungskanal einer Strömungsmaschine
CH650063A5 (de) Kreiselpumpe mit einem aussengehaeuse und einem innengehaeuse.
DE102021129828A1 (de) Druckreduziervorrichtung für ein strömendes Fluid
DE3827828A1 (de) Waermeaustauscher
EP0586340A1 (fr) Assemblage de soupape de régulation
EP1070221A1 (fr) Bruleur, en particulier pour des installations de chauffage
DE10032454A1 (de) Vorrichtung zum Kühlen eines ungleichmäßig stark temperaturbelasteten Bauteiles
DE19704541A1 (de) Einströmabschnitt eines Turbinengehäuses
DE3024106C2 (de) Befestigungsvorrichtung für Trenn- bzw Abscheideelemente in einem Filter/Wasserabscheider
DE440143C (de) Leitvorrichtung fuer Dampf- oder Gasturbinen
WO1997005364A1 (fr) Structure de pale directrice et son utilisation dans une turbine a vapeur

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

17P Request for examination filed

Effective date: 19990728

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE ES FR GB IT LI NL SE

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 20010424

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE ES FR GB IT LI NL SE

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: SIEMENS SCHWEIZ AG

REF Corresponds to:

Ref document number: 59802141

Country of ref document: DE

Date of ref document: 20011220

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20020118

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020530

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: SIEMENS SCHWEIZ AG;INTELLECTUAL PROPERTY FREILAGERSTRASSE 40;8047 ZUERICH (CH)

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

Ref country code: DE

Payment date: 20090320

Year of fee payment: 12

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

Ref country code: CH

Payment date: 20090403

Year of fee payment: 12

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

Ref country code: IT

Payment date: 20100127

Year of fee payment: 13

Ref country code: FR

Payment date: 20100211

Year of fee payment: 13

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

Ref country code: GB

Payment date: 20100115

Year of fee payment: 13

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

Ref country code: NL

Payment date: 20100118

Year of fee payment: 13

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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 NON-PAYMENT OF DUE FEES

Effective date: 20100131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100131

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

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100803

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

Ref country code: SE

Payment date: 20100112

Year of fee payment: 13

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20110801

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20110127

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110930

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

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110131

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

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110127

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110127

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110801

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

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110128