EP2067933B1 - Concept de sécurité pour une turbine à vapeur - Google Patents

Concept de sécurité pour une turbine à vapeur Download PDF

Info

Publication number
EP2067933B1
EP2067933B1 EP07017132A EP07017132A EP2067933B1 EP 2067933 B1 EP2067933 B1 EP 2067933B1 EP 07017132 A EP07017132 A EP 07017132A EP 07017132 A EP07017132 A EP 07017132A EP 2067933 B1 EP2067933 B1 EP 2067933B1
Authority
EP
European Patent Office
Prior art keywords
steam
cooling
valve
line
steam turbine
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.)
Not-in-force
Application number
EP07017132A
Other languages
German (de)
English (en)
Other versions
EP2067933A3 (fr
EP2067933A2 (fr
Inventor
Norbert Pieper
Armin Dr. De Lazzer
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
Priority to EP07017132A priority Critical patent/EP2067933B1/fr
Priority to AT07017132T priority patent/ATE533922T1/de
Publication of EP2067933A2 publication Critical patent/EP2067933A2/fr
Publication of EP2067933A3 publication Critical patent/EP2067933A3/fr
Application granted granted Critical
Publication of EP2067933B1 publication Critical patent/EP2067933B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/08—Cooling; Heating; Heat-insulation
    • F01D25/12—Cooling
    • 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
    • F01D25/26—Double casings; Measures against temperature strain in casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K13/00—General layout or general methods of operation of complete plants
    • F01K13/006—Auxiliaries or details not otherwise provided for
    • 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
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/31—Application in turbines in 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
    • F05D2260/00—Function
    • F05D2260/20—Heat transfer, e.g. cooling
    • F05D2260/232—Heat transfer, e.g. cooling characterized by the cooling medium
    • F05D2260/2322—Heat transfer, e.g. cooling characterized by the cooling medium steam

Definitions

  • the invention relates to a steam turbine plant, comprising a steam turbine with a flow medium flowable through a flow medium, a live steam supply for supplying live steam, arranged in the live steam supply live steam valve, a cooling steam line for supplying cooling steam to the steam turbine, wherein the steam turbine is connected to the cooling steam line the steam turbine is designed such that thermally loaded components can be wetted by the cooling steam and a cooling steam valve arranged in the cooling steam line. Furthermore, the invention relates to a method for cooling a steam turbine, wherein the steam turbine is flowed through an external cooling steam line with a cooling steam and a live steam feed with live steam.
  • Steam turbines are currently flowed with live steam, which has a live steam temperature of up to 600 ° C. Higher live steam temperatures require a well-functioning cooling device. Thermally loaded components of the steam turbine must be cooled by means of a cooling medium.
  • the cooling medium is fed to the steam turbine via an external cooling steam line.
  • the cooling steam is taken for example from the steam generator or branched off from the main steam line before the steam valves, cooled and then fed to the steam turbine at the points that are thermally stressed and therefore must be cooled.
  • the cooling medium is provided automatically via the compressor in the respective operating state of the system accordingly.
  • the mass flow of the cooling steam to the steam turbine does not correlate correspondingly quickly in the event of a sudden onset of a change in the load state of the steam turbine, ie that the mass flow of the cooling steam initially remains undesirably the same after the sudden load change.
  • a fast load change would be, for example, a load shedding or a turbine short circuit.
  • the initially undesirably high mass flow of the cooling steam temporarily leads to a high pressure difference between the components to be cooled in the steam turbine and an inflow space of the steam turbine.
  • the separating component or the sealing elements between these spaces or the components to be cooled themselves are mechanically stressed here.
  • the pressure of the cooling medium automatically drops as well.
  • the thin-walled components to be cooled thereby experience no special mechanical stress.
  • temporary pressure differences of several 100 bar between the cooling medium and the failed component may occur in such a case in which rapid load changes occur.
  • Thin-walled cooling elements can not withstand these stresses and are damaged. Since a sudden load change can not be ruled out according to experience, safety precautions must be taken to avoid damage to the steam turbine components. It would be desirable to form such a steam turbine system with a safety system, which in case of failure of existing safety systems, such as its own quick-closing valve for the cooling medium yet provides suitable protection for mechanically manufactured cooling components.
  • EP 1 674 669 discloses a steam turbine plant and method for cooling a steam turbine of the prior art.
  • the invention is based, whose task is to provide a steam turbine plant, which minimizes the risk of damage to the cooling components in a sudden load shedding.
  • a further object of the invention is to specify a method in which a component to be cooled or a backwashed component in a steam turbine is not damaged during load shedding.
  • a steam turbine plant comprising a steam turbine with a flow medium flowable through a flow channel, a live steam supply for supplying live steam, a fresh steam supply arranged in the fresh steam valve, a cooling steam line for supplying cooling steam to the steam turbine, said Steam turbine is connected to the cooling steam line, wherein the steam turbine is formed in such a way that thermally loaded components are wetted with the cooling steam, and arranged in the cooling steam line cooling steam valve, wherein a transverse line fluidly connects the cooling steam line with the live steam supply, wherein in the transverse line a transverse line valve is arranged, wherein the transverse line valve is designed such that a pressure drop in the live steam supply leads to opening.
  • the object directed to the method is achieved by a method for cooling a steam turbine, wherein the steam turbine is flowed through an external cooling steam line with an external cooling steam and is flowed through a live steam feed with live steam, wherein a transverse line with a cross-line valve between the cooling steam line and the Main steam supply is arranged, wherein the cross-line valve opens when a sudden onset of pressure occurs in the live steam supply.
  • the invention is based on the aspect that quick-acting valves in the cooling steam line not fast enough to a sudden load change close and thereby too high a mass flow of the cooling medium is passed into the steam turbine, whereby an excessive pressure in the steam turbine, especially in the components to be cooled occurs.
  • An advantage of the invention is that now between the external cooling steam line and the live steam supply a transverse line is provided, which is closed in nominal operation with a cross-line valve, so that no cooling medium flows through the transverse line to the live steam supply. In the event of a sudden load change, the quick-closing valve in the live steam supply closes, as a result of which the pressure in the live steam supply suddenly drops.
  • the quick-closing valve in the cooling steam line delays in comparison with the quick-closing valve in the live steam supply, a state is present for a short time, which is undesirable, because for this short time until the quick-closing valve in the cooling steam line closes, the high mass flow in the cooling steam line too high a pressure in the components to be cooled in the steam turbine.
  • the cross-line valve opens for this case and thereby the cooling steam is passed from the cooling steam line via the transverse line to the live steam supply.
  • the live steam supply is dimensioned in relation to the cooling steam line in such a way that the mass flow of the cooling medium in the live steam feed leads to no damage to the steam turbine.
  • the cross-line valve is designed as a spring-loaded check valve.
  • the spring-loaded check valve is dimensioned such that during normal operation, the cross-line valve remains closed. In nominal operation, the pressure of the cooling medium is higher than the pressure of the live steam. In the event of a sudden load shedding, the pressure of the live steam in the live steam feed unit is abruptly reduced.
  • the spring-loaded check valve must in this case are dimensioned such that in this suddenly occurring pressure difference between the pressure in the cooling steam line and the live steam supply opens the valve.
  • the control of the cross-line valve is made passive, so to speak. This means that the cross-line valve does not have to be activated actively via a control unit.
  • the controlled variables are now the pressures in the cooling steam line and in the live steam feed.
  • any form of passive pressure relief valve that opens above a certain pressure differential can be used.
  • the transverse line is viewed in the flow direction of the live steam and, seen in the flow direction of the cooling steam, is arranged behind the live steam valve and the cooling steam valve.
  • the main steam valve and the cooling steam valve are usually designed as a valve combination of a quick-acting valve and a control valve.
  • the quick-closing valve has the task in case of failure to close the mass flow through the cooling steam line.
  • the transverse line is arranged inside the steam turbine.
  • the transverse line can advantageously be arranged in the inner housing. Outside the steam turbine arranged transverse lines offer the risk of damage due to accidents outside the steam turbine. The arrangement of the transverse line in the inner housing minimizes this risk.
  • a steam turbine 1 comprising an outer housing 2 and an inner housing 3 is shown.
  • a rotor 4 is rotatably mounted about a rotation axis 5.
  • the rotor 4 has a thrust balance piston 6 and a plurality of blades 7.
  • the inner housing 3 has a plurality of guide vanes 8.
  • a flow channel 9 is formed, which is equipped with the guide vanes 8 and the blades 7.
  • a live steam flows via the live steam supply 10, via a quick-closing valve 11 and a control valve 12 into an inlet region 13 into the steam turbine 1.
  • the live steam flows through the flow channel 9 along the guide vanes 8 and blades 7, expands to a lower pressure and cools through.
  • the thermal energy of the live steam is converted into rotational energy and transmitted via the blades 7 to the rotor.
  • a region subject to particular thermal stress is the area in the vicinity of the thrust balance piston 6.
  • a cooling steam is conveyed via an external cooling steam line 14 via a quick closing and a control valve 15, 16 the steam turbine is led to the otherwise thermally stressed areas.
  • the inner housing 3 in this case has a plurality of cooling holes 17.
  • the cooling medium flows in this case in a space between the inner housing 3 and the outer housing 2 to the cooling hole 17.
  • the outer housing 2 in this case has an outer housing cooling hole 19 through which the cooling steam enters the space 18.
  • the transverse line 21 In the flow direction of Seen cooling steam branches off at the point 20, the transverse line 21 from.
  • the transverse line 21 connects the point 20 with the point 22.
  • the point 22 represents a branch from the live steam supply 10 to the transverse line 21.
  • a transverse line valve 23 In the transverse line 21, a transverse line valve 23 is arranged.
  • the cross-line valve 23 is in this case designed as a spring-loaded check valve, which then opens when in the live steam supply 10, the pressure drops abruptly. As a result, the cooling medium is conducted via the cooling medium line 14 and via the point 20 into the inflow region 13. Thus, a too large differential pressure load between the cooling chamber 18 and inflow 13 is avoided via the cooling hole 17, whereby a mechanical overstressing of parts of the inner housing 3 (also includes sealing elements) is avoided.
  • FIG. 2 is an alternative embodiment to the steam turbine according to FIG. 1 shown.
  • the transverse line 21 is not designed as an external transverse line, but as an internal transverse line 24.
  • This internal transverse line 24 is disposed within the inner housing 3.
  • the internal cross-line 24 also has a cross-line valve 23, which is designed as a spring-loaded check valve.
  • the external transverse line 21 which avoids or reduces the risk of damaging influence on an external component.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Turbines (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Claims (8)

  1. Installation de turbine à vapeur,
    comprenant une turbine ( 1 ) à vapeur ayant un canal ( 9 ) d'écoulement pouvant être parcouru par un fluide en écoulement,
    un conduit ( 10 ) d'apport de vapeur vive pour apporter de la vapeur vive,
    une vanne ( 11, 12 ) de vapeur vive disposée dans le conduit ( 10 ) d'apport de vapeur vive,
    un conduit ( 14 ) de vapeur de refroidissement pour l'apport de vapeur de refroidissement à la turbine ( 1 ) à vapeur, dans laquelle la turbine ( 1 ) à vapeur communique avec le conduit ( 14 ) de vapeur de refroidissement,
    dans laquelle la turbine ( 1 ) à vapeur est constituée de manière à ce que des éléments sollicités thermiquement puissent être parcourus par la vapeur de refroidissement, et
    une vanne ( 15, 16 ) de vapeur de refroidissement montée dans le conduit ( 14 ) de vapeur de refroidissement,
    un conduit ( 21 ) transversal relie entre eux fluidiquement le conduit ( 14 ) de vapeur de refroidissement au conduit ( 10 ) d'apport de vapeur vive,
    dans laquelle une vanne ( 23 ) de conduit transversal est montée dans le conduit ( 21 ) transversal,
    caractérisée en ce que
    la vanne ( 23 ) de conduite transversal est constituée de façon à ce que
    une chute de pression dans le conduit ( 10 ) d'apport de vapeur vive provoque l'ouverture.
  2. Installation de turbine à vapeur suivant la revendication 1, dans laquelle la vanne ( 23 ) de conduit transversal est constituée sous la forme d'un clapet antiretour soumis à l'action d'un ressort.
  3. Installation de turbine à vapeur suivant la revendication 1 ou 2,
    dans laquelle le conduit ( 21 ) transversal est monté, considéré dans le sens d'écoulement de la vapeur de refroidissement, en aval de la vanne ( 11, 12 ) de vapeur vive et de la vanne ( 15, 16 ) de vapeur de refroidissement.
  4. Installation de turbine à vapeur suivant l'une des revendications précédentes,
    dans laquelle le conduit ( 21 ) transversal est disposé à l'intérieur de la turbine ( 1 ) à vapeur.
  5. Installation de turbine à vapeur suivant la revendication 4, dans laquelle la turbine ( 1 ) à vapeur comporte un carter ( 2 ) extérieur et un carter ( 3 ) intérieur et le conduit ( 21 ) transversal est disposé dans le carter ( 3 ) intérieur.
  6. Procédé de refroidissement d'une turbine ( 1 ) à vapeur, dans lequel on fait circuler de la vapeur de refroidissement extérieur dans la turbine ( 1 ) à vapeur par un conduit ( 14 ) extérieur de vapeur de refroidissement et on fait circuler de la vapeur vive par un conduit ( 10 ) d'apport de vapeur vive,
    caractérisé en ce que
    on monte un conduit ( 21 ) transversal ayant une vanne ( 23 ) de section transversale entre le conduit ( 14 ) de vapeur de refroidissement et le conduit ( 10 ) d'apport de vapeur vive, dans lequel la vanne ( 23 ) de conduit transversal s'ouvre, s'il se produit une chute de pression s'établissant soudainement dans le conduit ( 10 ) d'apport de vapeur vive.
  7. Procédé suivant la revendication 6,
    dans lequel on donne à la vapeur de refroidissement une pression supérieure à la pression de la vapeur vive.
  8. Procédé suivant la revendication 6 ou 7,
    dans lequel on forme la vanne ( 23 ) de conduit transversal sous la forme d'un clapet antiretour soumis à l'action d'un ressort.
EP07017132A 2007-08-31 2007-08-31 Concept de sécurité pour une turbine à vapeur Not-in-force EP2067933B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP07017132A EP2067933B1 (fr) 2007-08-31 2007-08-31 Concept de sécurité pour une turbine à vapeur
AT07017132T ATE533922T1 (de) 2007-08-31 2007-08-31 Sicherheitskonzept für eine dampfturbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07017132A EP2067933B1 (fr) 2007-08-31 2007-08-31 Concept de sécurité pour une turbine à vapeur

Publications (3)

Publication Number Publication Date
EP2067933A2 EP2067933A2 (fr) 2009-06-10
EP2067933A3 EP2067933A3 (fr) 2011-01-05
EP2067933B1 true EP2067933B1 (fr) 2011-11-16

Family

ID=40577782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07017132A Not-in-force EP2067933B1 (fr) 2007-08-31 2007-08-31 Concept de sécurité pour une turbine à vapeur

Country Status (2)

Country Link
EP (1) EP2067933B1 (fr)
AT (1) ATE533922T1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106194284A (zh) * 2016-07-22 2016-12-07 东方电气集团东方汽轮机有限公司 一种汽轮机夹层蒸汽参数调整及运行的方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102695850B (zh) * 2009-12-21 2015-10-21 三菱日立电力系统株式会社 单流式涡轮机的冷却方法及装置
EP2412937A1 (fr) 2010-07-30 2012-02-01 Siemens Aktiengesellschaft Turbine à vapeur et procédé de refroidissement de celle-ci
EP2565401A1 (fr) 2011-09-05 2013-03-06 Siemens Aktiengesellschaft Procédé d'équilibrage des températures dans une turbine à gaz
CN109826675A (zh) * 2019-03-21 2019-05-31 上海电气电站设备有限公司 汽轮机冷却系统及方法
CN114508393B (zh) * 2021-12-27 2023-07-18 东方电气集团东方汽轮机有限公司 甩负荷时轴向推力为零的汽缸、一次及二次再热汽轮机

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1034193B (de) * 1957-10-26 1958-07-17 Escher Wyss Gmbh Verfahren zum Kuehlhalten hochbeanspruchter Teile von Dampf- oder Gasturbinen
JPS58140408A (ja) * 1982-02-17 1983-08-20 Hitachi Ltd 蒸気タ−ビンの冷却装置
EP1674669A1 (fr) * 2004-12-21 2006-06-28 Siemens Aktiengesellschaft Procédé de refroidissement de turbine à vapeur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106194284A (zh) * 2016-07-22 2016-12-07 东方电气集团东方汽轮机有限公司 一种汽轮机夹层蒸汽参数调整及运行的方法

Also Published As

Publication number Publication date
EP2067933A3 (fr) 2011-01-05
ATE533922T1 (de) 2011-12-15
EP2067933A2 (fr) 2009-06-10

Similar Documents

Publication Publication Date Title
DE69832740T2 (de) Gasturbinenanlage
EP1774140B1 (fr) Turbine a vapeur et procede pour faire fonctionner une turbine a vapeur
EP2067933B1 (fr) Concept de sécurité pour une turbine à vapeur
DE10236294A1 (de) Gasversorgungskontrolleinrichtung einer Gasspeicherkraftanlage
DE60029510T2 (de) Dampfkühlungssystem für den Ausgleichkolben einer Dampfturbine und dazugehörige Methode
WO2010130251A2 (fr) Dispositif d'écoulement à refroidissement de cavités
EP2596213B1 (fr) Turbine à vapeur avec un refroidissement interne
CH703587A2 (de) Druckbetätigter Stopfen.
EP1904717B1 (fr) Element de carter conducteur de gaz chaud, enveloppe de protection d'arbre et systeme de turbine a gaz
EP0928365B1 (fr) Turbine a vapeur, installation de turbine a vapeur et procede de refroidissement de turbine a vapeur
EP1744020A1 (fr) Procédé de démarrage d'une installation de turbines à vapeur
DE102008045655B4 (de) Dampfturbinensystem mit einer Kondensationsdampfturbine mit einer energieeffizienten Sperrdampfversorgung
EP2554789A1 (fr) Turbine à vapeur comprenant un piston de compensation
EP3155226B1 (fr) Turbine à vapeur et procédé de fonctionnement d'une turbine à vapeur
WO2016206974A1 (fr) Procédé de refroidissement d'une turbomachine
EP2598724B1 (fr) Turbine à vapeur et procédé pour refroidir une turbine à vapeur
EP1455066B1 (fr) Méthode et dispositif de refroidissement d'une turbomachine
EP1335110A1 (fr) Turbomachine avec des aubages à haute pression et basse pression
EP3129623B1 (fr) Installation de turbine à gaz avec un dispositif de balayage et/ou de blocage d'au moins un brûleur et procédé de balayage et/ou de blocage d'au moins un brûleur d'une telle installation de turbine à gaz
DE2550059C2 (de) Sicherheitssystem für eine Dampfturbinenanlage
EP3183426B1 (fr) Refroidissement contrôlé d'arbres de turbines
EP2031190B1 (fr) Turbine à vapeur dotée d'une alimentation réglée en agent de refroidissement
DE102006010863B4 (de) Turbomaschine, insbesondere Verdichter
EP2724006B1 (fr) Turbine d'air et procédés associés
EP3628922A1 (fr) Procédé de conditionnement d'une turbine basse pression

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

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

RIC1 Information provided on ipc code assigned before grant

Ipc: F01K 13/00 20060101ALI20101130BHEP

Ipc: F01D 25/12 20060101AFI20090504BHEP

17P Request for examination filed

Effective date: 20110207

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: F01K 13/00 20060101ALI20110503BHEP

Ipc: F01D 25/12 20060101AFI20110503BHEP

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: SIEMENS SCHWEIZ AG

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20111116

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502007008668

Country of ref document: DE

Effective date: 20120301

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20111116

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

Ref country code: LT

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: 20111116

Ref country code: IS

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: 20120316

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

Ref country code: LV

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: 20111116

Ref country code: SI

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: 20111116

Ref country code: NL

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: 20111116

Ref country code: SE

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: 20111116

Ref country code: GR

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: 20120217

Ref country code: PL

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: 20111116

Ref country code: PT

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: 20120316

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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

Ref country code: CY

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: 20111116

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

Ref country code: CZ

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: 20111116

Ref country code: IE

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: 20111116

Ref country code: SK

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: 20111116

Ref country code: DK

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: 20111116

Ref country code: EE

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: 20111116

Ref country code: BG

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: 20120216

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

Ref country code: RO

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: 20111116

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

Effective date: 20120817

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007008668

Country of ref document: DE

Effective date: 20120817

BERE Be: lapsed

Owner name: SIEMENS A.G.

Effective date: 20120831

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

Ref country code: MC

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

Effective date: 20120831

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: 20120227

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

Ref country code: BE

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

Effective date: 20120831

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

Ref country code: FI

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: 20111116

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 533922

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120831

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

Ref country code: AT

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

Effective date: 20120831

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

Ref country code: MT

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: 20111116

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

Ref country code: TR

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: 20111116

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

Ref country code: LU

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

Effective date: 20120831

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

Ref country code: HU

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: 20070831

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

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

Ref country code: GB

Payment date: 20160811

Year of fee payment: 10

Ref country code: IT

Payment date: 20160830

Year of fee payment: 10

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

Ref country code: FR

Payment date: 20160823

Year of fee payment: 10

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

Ref country code: CH

Payment date: 20161109

Year of fee payment: 10

Ref country code: DE

Payment date: 20161020

Year of fee payment: 10

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCOW

Free format text: NEW ADDRESS: WERNER-VON-SIEMENS-STRASSE 1, 80333 MUENCHEN (DE)

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502007008668

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 20170831

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

Ref country code: CH

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

Effective date: 20170831

Ref country code: LI

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

Effective date: 20170831

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20180430

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: 20180301

Ref country code: GB

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

Effective date: 20170831

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: 20170831

Ref country code: IT

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

Effective date: 20170831