EP2123865B1 - Dispositif et procédé pour contrôler l'injection d'un fluide opérationnel et installation pour la production d'électricité pour ledit dispositif de contrôle - Google Patents

Dispositif et procédé pour contrôler l'injection d'un fluide opérationnel et installation pour la production d'électricité pour ledit dispositif de contrôle Download PDF

Info

Publication number
EP2123865B1
EP2123865B1 EP08425366.5A EP08425366A EP2123865B1 EP 2123865 B1 EP2123865 B1 EP 2123865B1 EP 08425366 A EP08425366 A EP 08425366A EP 2123865 B1 EP2123865 B1 EP 2123865B1
Authority
EP
European Patent Office
Prior art keywords
fluid
operating fluid
evolving
flowrate
plant
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.)
Active
Application number
EP08425366.5A
Other languages
German (de)
English (en)
Other versions
EP2123865A3 (fr
EP2123865A2 (fr
EP2123865A9 (fr
Inventor
Fabrizio Ghinetti
Federica Perpiglia
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.)
Ansaldo Energia SpA
Original Assignee
Ansaldo Energia SpA
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 Ansaldo Energia SpA filed Critical Ansaldo Energia SpA
Priority to PL08425366T priority Critical patent/PL2123865T3/pl
Priority to EP08425366.5A priority patent/EP2123865B1/fr
Publication of EP2123865A2 publication Critical patent/EP2123865A2/fr
Publication of EP2123865A9 publication Critical patent/EP2123865A9/fr
Publication of EP2123865A3 publication Critical patent/EP2123865A3/fr
Application granted granted Critical
Publication of EP2123865B1 publication Critical patent/EP2123865B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/025—Devices and methods for diminishing corrosion, e.g. by preventing cooling beneath the dew point
    • 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
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
    • F01K23/106—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle with water evaporated or preheated at different pressures in exhaust boiler

Definitions

  • the present invention relates to a device and a method for controlling the injection of an operating fluid in an evolving fluid of a plant for the production of electrical energy and to a plant for the production of electrical energy comprising said control device.
  • the present invention relates to a device and to a method for controlling the injection of an operating fluid in an evolving fluid of a combined-cycle electrical energy production plant.
  • Energy-production plants and in particular combined-cycle energy-production plants, usually comprise a device for controlling the injection of an operating fluid into the fluid evolving in the plant.
  • the evolving fluid is initially water, then vapour, and finally condensate.
  • the operating fluid is injected into the evolving fluid in different portions of the plant in order to protect from electrochemical corrosion and from the deposition of encrusting salts the circuit of the plant within which the evolving fluid flows.
  • Known devices for controlling the injection of the operating fluid substantially comprise means for calculation of a flowrate of operating fluid to be injected, and means for driving at least one pump for injection of the operating fluid on the basis of the flowrate of operating fluid calculated.
  • the calculation means are configured for calculating the flowrate of operating fluid to be injected on the basis of the difference between a value of a detected parameter of the evolving fluid modified by the operating fluid and a reference value set beforehand.
  • Said control devices generally use a PID (proportional integral derivative) control mode, which requires identification of appropriate control constants.
  • PID proportional integral derivative
  • control constants are particularly problematical, in so far as it is very difficult to identify control constants such as to determine a control of the injection that is precise, stable, and fast.
  • the choice of the control constants has repercussions on the stability of the control of the injection above all in emergency situations, such as, for example, pollution of the condensate, where it is necessary to intervene rapidly maintaining the stability of the control.
  • An aim of the present invention is to provide a device for controlling the injection of an operating fluid that is free from the drawbacks highlighted of the known art.
  • an aim of the invention is to provide a device for controlling the injection of an operating fluid that is reliable and simple to use.
  • the present invention relates to a device for controlling the injection of at least one operating fluid in an evolving fluid of a plant for the production of electrical energy according to claim 1.
  • the present invention moreover relates to a method for controlling the injection of at least one operating fluid in an evolving fluid of a plant for the production of electrical energy.
  • the present invention relates to a method for controlling the injection of at least one operating fluid in an evolving fluid of a plant for the production of electrical energy according to claim 6.
  • the present invention moreover relates to a plant for the production of electrical energy.
  • the present invention relates to an electrical energy production plant according to claim 7.
  • the plant 1 is a plant for the combined-cycle production of electrical energy and comprises a gas-turbine unit 2, a steam-turbine unit 3, two alternators 5, 6, respectively coupled to the gas-turbine unit 2 and to the steam-turbine unit 3 and connected to a distribution network (not illustrated), a steam generator 7, a condenser 8, an assembly for injection of a first operating fluid 10, an assembly for injection of a second operating fluid 11, and an operating fluid injection control device 12.
  • the plant comprises a gas-turbine unit, a steam-turbine unit, and an alternator all set on one and the same axis.
  • the exhaust fumes of the gas-turbine unit 2 are channelled along a duct 13 and provide a source of heat for the steam generator 7.
  • the steam generator 7 comprises a high-pressure element 14, a medium-pressure element 15 and a low-pressure element 16, each of which comprises an economizer 17, a cylindrical body ("drum") 18, an evaporator 19 and a super-heater 20, operation of which is known and will not be discussed in detail.
  • the economizers 17 of the high-pressure element 14 and of the medium-pressure element 15 receive water from the low-pressure drum 18 by means of a supply pump 21, whilst the economizer 17 of the low-pressure element 16 receives water from a collection tank of the condenser 8, by means of an extraction pump 22.
  • the steam-turbine unit 3 comprises a high-pressure section 24, a medium-pressure section 25, and a low-pressure section 26 circulating within which is steam coming, respectively, from the high-pressure element 14, the medium-pressure element 15, and the low-pressure element 16.
  • the steam turbine comprises the high-pressure section and a medium-low-pressure section.
  • an evolving fluid flows, which is initially water supplied by the pump 21, becomes vapour (steam) within the steam generator 7, and is transformed into condensate after the expansion in the low-pressure section 26 of the steam-turbine unit 3.
  • the injection assembly 10 of the first operating fluid comprises a tank 28 containing the first operating fluid, and an injection pump 32 for injecting the first operating fluid.
  • the injection pump 32 injects the first operating fluid into the evolving fluid upstream of the supply pump 21 under the control of the control device 12 as will be described in detail hereinafter.
  • the evolving fluid in this situation, is water coming from the low-pressure drum 18.
  • the first operating fluid comprises a de-oxygenating fluid diluted in water, for example, an amine-based de-oxygenating organic fluid.
  • the de-oxygenating fluid has a given concentration of active principle, commonly referred to as de-oxygenating power P deox .
  • the assembly 11 for injection of the second operating fluid comprises a tank 35 containing the second operating fluid, and an injection pump 36 for injection of the second operating fluid.
  • the injection pump 36 injects the second operating fluid into the evolving fluid downstream of the pump 22 for extraction of the condensate under the control of the control device 12 as will be described in greater detail hereinafter.
  • the evolving fluid in this situation, is condensate coming from the condenser 8.
  • the second operating fluid comprises an alkalinizing fluid diluted in water, for example an amine-based or ammoniac-based alkalinizing fluid, to maintain the pH of the evolving fluid in the limits set by the standards.
  • an alkalinizing fluid diluted in water for example an amine-based or ammoniac-based alkalinizing fluid, to maintain the pH of the evolving fluid in the limits set by the standards.
  • the alkalinizing fluid has a given concentration of alkalinizing agent C flop .
  • the control device 12 comprises a calculation module 38 for calculating the flowrates Q 1 , Q 2 of operating fluid to be injected into the fluid evolving in the plant 1 and a driving module 39 for driving the injection pumps 32 and 36 on the basis of the calculated flowrates Q 1 , Q 2 of operating fluid.
  • the calculation module 38 is configured for calculating the flowrate Q 1 of the first operating fluid to be injected into the evolving fluid upstream of the supply pump 21 on the basis of a detected parameter of the evolving fluid modified by the first operating fluid.
  • the detected parameter of the evolving fluid modified by the first operating fluid is the concentration of oxygen C 1 in the evolving fluid detected in the portion of plant 1 into which the operating fluid is injected, in particular upstream of the supply pump 32.
  • the calculation module 38 is configured for calculating the flowrate Q 1 of the first operating fluid to be injected according to a first mode when the concentration of oxygen C 1 is lower than a given threshold value C TS and according to a second mode when the concentration of oxygen C 1 is higher than said threshold value C TS .
  • the threshold value C TS of the detected parameter of the evolving fluid modified by the first operating fluid defines the type of treatment that it is intended to adopt.
  • the threshold value C TS is comprised between 4 and 6 ppb, preferably 5 ppb.
  • the threshold value C TS is comprised between 19 and 20 ppb, preferably 20 ppb.
  • the calculation module 38 calculates the flowrate Q 1 according to a formula independent of the concentration of oxygen C 1 in the first mode, whilst in the second mode adds to the independent term calculated in the first mode, a term depending upon the concentrations of oxygen C 1 .
  • the calculation module 38 determines a zero value of the flowrate Q 1 in the first mode. In the second mode, i.e., only when the value of the concentration C 1 is higher than the threshold value C TS , the calculation module 38 calculates the flowrate Q 1 in accordance with Eq. (2) indicated above.
  • the calculation module 38 is moreover configured for calculating the flowrate Q 2 of second operating fluid to be supplied downstream of the pump 22 for intake of the condensate on the basis of a detected parameter of the evolving fluid modified by the second operating fluid.
  • said parameter is the pH of the evolving fluid detected in a portion of the plant in which the operating fluid is injected, in particular downstream of the suction pump 22.
  • the calculation module 38 is configured for calculating the flowrate Q 2 of the second operating fluid to be injected according to a first mode when the pH of the evolving fluid downstream of the suction pump 22 is lower than a given threshold value pH TS and a second mode when the pH of the evolving fluid downstream of the suction pump 22 is higher than said threshold value pH TS .
  • the threshold value pH TS is comprised between 9 and 10, in particular the threshold value pH TS is preferably 9.55 in the case where an amine-based operating fluid is used, whilst it is preferably 9.85 in the case where an ammoniac-based operating fluid will be used.
  • the calculation module 38 calculates the flowrate Q 2 according to a formula depending upon the pH detected, whilst in the second mode the calculation module 38 calculates a zero flowrate Q 2 .
  • the driving module 39 on the basis of the flowrates Q 1 , Q 2 of operating fluids calculated by the calculation module 38, sends to the injection pumps 32 and 36 respective driving signals Sp 1 Sp 2 designed to drive the stroke of the pump in such a way as to determine an injection of a flowrate of operating fluid equal to the flowrate calculated by the calculation module 38.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Control Of Turbines (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Claims (7)

  1. Dispositif de commande de l'injection d'au moins un fluide de travail dans un fluide en évolution d'une installation (1) pour la production d'énergie électrique comprenant :
    un moyen de calcul (38) destiné à calculer au moins un débit (Q2) de fluide de travail à injecter dans le fluide en évolution sur la base d'un paramètre détecté (pH) du fluide en évolution modifié par le fluide de travail ;
    le moyen de calcul (38) est configuré pour calculer le débit (Q2) de fluide de travail à injecter selon un premier mode lorsque le paramètre détecté (pH) est inférieur à une valeur seuil donnée (PHTS) et selon un deuxième mode lorsque le paramètre détecté (pH) est supérieur à ladite valeur seuil (PHTS) ;
    le fluide de travail contenant un fluide alcalinisant ; le paramètre détecté du fluide en évolution modifié par le fluide de travail étant le pH ; dans le premier mode le moyen de calcul (38) étant configuré pour calculer un débit (Q2) de fluide de travail en fonction du pH détecté ;
    le dispositif (12) étant caractérisé en ce que dans le premier mode le moyen de calcul (38) est configuré pour calculer un débit (Q2) de fluide de travail comme suit : Q ⁢ 2 = PM ⋅ Q flev ⁢ 2 ⋅ 10 pH TS - 14 - 10 - 14 / 10 - pH C flop ⋅ D flop
    Figure imgb0008
    où:
    PM est le poids moléculaire de l'agent alcalinisant présent dans le fluide de travail ;
    Qflev2 est le débit de fluide en évolution dans la partie d'installation dans laquelle le fluide de travail est injecté ;
    Cflop est la concentration de l'agent alcalinisant dans le liquide alcalinisant ;
    Dflop est la dilution du fluide alcalinisant dans l'eau ;
    pH est la valeur du pH détecté dans la partie d'installation dans laquelle le fluide de travail est injecté ; et
    PHTS est la valeur seuil du paramètre pH détecté.
  2. Dispositif selon la revendication 1, caractérisé en ce qu'il comprend un moyen d'entraînement (39) destiné à entraîner au moins une pompe d'injection de fluide de travail (36) sur la base du débit calculé (Q2) de fluide de travail.
  3. Dispositif selon la revendication 1, caractérisé en ce que le fluide en évolution dans lequel le fluide de travail est injecté est de la vapeur condensée.
  4. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la valeur seuil (pHTS) est comprise entre 9 et 10.
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que dans le deuxième mode le moyen de calcul (38) est configuré pour calculer un débit nul (Q2) de fluide de travail.
  6. Procédé destiné à commander l'injection d'au moins un fluide de travail dans un fluide en évolution d'une installation (1) pour la production d'énergie électrique comprenant l'étape consistant à calculer au moins un débit (Q2) de fluide de travail à injecter dans le fluide en évolution sur la base d'un paramètre détecté (pH) du fluide en évolution modifié par le fluide de travail ; le débit (Q2) de fluide de travail à injecter est calculé selon un premier mode lorsque le paramètre détecté (pH) est inférieur à une valeur seuil donnée (PHTS) et selon un deuxième mode lorsque le paramètre détecté (pH) est supérieur à ladite valeur seuil (PHTS) ; le fluide de travail contenant un fluide alcalinisant ; le paramètre détecté du fluide en évolution modifié par le fluide de travail étant le pH ; dans le premier mode le moyen de calcul (36) étant configuré pour calculer un débit (Q2) de fluide de travail en fonction du pH détecté ;
    le procédé étant caractérisé en ce que dans le premier mode l'étape de calcul d'au moins un débit (Q2) de fluide de travail comprend le fait de calculer le débit (Q2) de fluide de travail comme suit : Q ⁢ 2 = PM ⋅ Q flev ⁢ 2 ⋅ 10 pH TS - 14 - 10 - 14 / 10 - pH C flop ⋅ D flop
    Figure imgb0009
    où:
    PM est le poids moléculaire de l'agent alcalinisant présent dans le fluide de travail ;
    Qflev2 est le débit de fluide en évolution dans la partie d'installation dans laquelle le fluide de travail est injecté ;
    Cflop est la concentration de l'agent alcalinisant dans le fluide alcalinisant ;
    Dflop est la dilution du fluide alcalinisant dans l'eau ;
    pH est la valeur du pH détecté dans la partie d'installation dans laquelle le fluide de travail est injecté ; et
    PHTS est la valeur seuil du paramètre pH détecté.
  7. Installation de production d'énergie électrique comprenant au moins une unité de turbine à vapeur (3) dans laquelle un fluide en évolution circule ; l'installation (1) étant caractérisée en ce qu'elle comprend un dispositif (12) destiné à commander l'injection d'au moins un fluide de travail dans le fluide en évolution tel que revendiqué dans l'une quelconque des revendications 1 à 5.
EP08425366.5A 2008-05-22 2008-05-22 Dispositif et procédé pour contrôler l'injection d'un fluide opérationnel et installation pour la production d'électricité pour ledit dispositif de contrôle Active EP2123865B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL08425366T PL2123865T3 (pl) 2008-05-22 2008-05-22 Urządzenie i sposób do sterowania wstrzykiwaniem płynu roboczego oraz instalacja do produkcji energii elektrycznej zawierająca wspomniane urządzenie sterujące
EP08425366.5A EP2123865B1 (fr) 2008-05-22 2008-05-22 Dispositif et procédé pour contrôler l'injection d'un fluide opérationnel et installation pour la production d'électricité pour ledit dispositif de contrôle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08425366.5A EP2123865B1 (fr) 2008-05-22 2008-05-22 Dispositif et procédé pour contrôler l'injection d'un fluide opérationnel et installation pour la production d'électricité pour ledit dispositif de contrôle

Publications (4)

Publication Number Publication Date
EP2123865A2 EP2123865A2 (fr) 2009-11-25
EP2123865A9 EP2123865A9 (fr) 2010-05-19
EP2123865A3 EP2123865A3 (fr) 2011-01-19
EP2123865B1 true EP2123865B1 (fr) 2013-11-06

Family

ID=41056881

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08425366.5A Active EP2123865B1 (fr) 2008-05-22 2008-05-22 Dispositif et procédé pour contrôler l'injection d'un fluide opérationnel et installation pour la production d'électricité pour ledit dispositif de contrôle

Country Status (2)

Country Link
EP (1) EP2123865B1 (fr)
PL (1) PL2123865T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10179743B2 (en) 2014-02-28 2019-01-15 Kurita Water Industries Ltd. Device and method for controlling chemical injection into boiler

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19544224B4 (de) * 1995-11-28 2004-10-14 Alstom Chemische Fahrweise eines Wasser/Dampf-Kreislaufes
DE19736885A1 (de) * 1997-08-25 1999-03-04 Siemens Ag Dampferzeuger, insbesondere Abhitzedampferzeuger und Verfahren zum Betrieb dieses Dampferzeugers
DE102008023263A1 (de) * 2008-05-13 2009-11-19 Hitachi Power Europe Gmbh Chemische Wasser-/Dampfkreislaufkonditionierung

Also Published As

Publication number Publication date
EP2123865A3 (fr) 2011-01-19
EP2123865A2 (fr) 2009-11-25
EP2123865A9 (fr) 2010-05-19
PL2123865T3 (pl) 2014-04-30

Similar Documents

Publication Publication Date Title
JP7060996B2 (ja) 燃焼装置、ガスタービン及び発電装置
CN106194296A (zh) 一种从电站锅炉抽蒸汽的热电解耦供热系统
JP2008057888A (ja) 蒸気プラントの水処理方法
JP2009243972A (ja) タービン設備の水質監視装置及び方法
CN102347613A (zh) 电力系统暂稳紧急控制在线策略与离线策略自动选择方法
CN102691538B (zh) 动力产生装置及其控制方法
WO2009109311A2 (fr) Procédé de production d'énergie a partir d'un courant de gaz d'échappement, et véhicule à moteur correspondant
CN204939171U (zh) 一种移动式核能海水淡化系统
EP2123865B1 (fr) Dispositif et procédé pour contrôler l'injection d'un fluide opérationnel et installation pour la production d'électricité pour ledit dispositif de contrôle
JP2016194396A (ja) 排熱回収システム、および該排熱回収システムの運用方法
ZA202109369B (en) System and method to improve boiler and steam turbine start-up times
CN106097151A (zh) 一种基于数据协调的降低电厂数据不确定度的方法
CN105417668B (zh) 一种复合碱化剂及其用途
KR102385496B1 (ko) 급수 계통에 있어서의 해수의 누설 검출 장치 및 방법 및 증기 터빈 플랜트
EP2640936B1 (fr) Installation à cycle combiné pour production d'énergie et procédé de fonctionnement de ladite installation
JP5783458B2 (ja) 蒸気発電プラントにおける増出力運転方法
ATE551570T1 (de) Chemische wasser-dampf-kreislauf-konditionierung
NO994893L (no) Vindkraftmaskin
DE60126556T2 (de) Dampfkühlungsvorrichtung für eine Gasturbine
EP2594764A1 (fr) Installation de turbine à vapeur et son procédé de fonctionnement
JP5010113B2 (ja) 発電システム
CN112818516A (zh) 一种全高位布置汽轮发电机组的回热系统疏水优化方法
EP2868874A1 (fr) Centrale à vapeur comprenant un générateur à refroidissement liquide
CN106961100B (zh) 新能源发配输电系统设施
WO2009109659A2 (fr) Procédé et dispositif pour commander une installation à cycle combiné, et installation à cycle combiné

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 HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

RTI1 Title (correction)

Free format text: DEVICE AND METHOD FOR CONTROLLING THE INJECTION OF AN OPERATING FLUID AND PLANT FOR THE PRODUCTION OF ELECTRICAL ENERGY COMPRISING SAID CONTROL DEVICE

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 HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

RIC1 Information provided on ipc code assigned before grant

Ipc: F01K 23/10 20060101ALI20101215BHEP

Ipc: F22B 37/02 20060101AFI20101215BHEP

17P Request for examination filed

Effective date: 20110719

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602008028530

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: F01K0021060000

Ipc: F22B0037020000

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: F22B 37/02 20060101AFI20130423BHEP

Ipc: F01K 23/10 20060101ALI20130423BHEP

INTG Intention to grant announced

Effective date: 20130517

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 HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 639754

Country of ref document: AT

Kind code of ref document: T

Effective date: 20131215

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602008028530

Country of ref document: DE

Effective date: 20140102

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20131106

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 639754

Country of ref document: AT

Kind code of ref document: T

Effective date: 20131106

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131106

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: 20140306

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: 20131106

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: 20131106

Ref country code: HR

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: 20131106

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: 20131106

Ref country code: NO

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: 20140206

REG Reference to a national code

Ref country code: PL

Ref legal event code: T3

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: 20131106

Ref country code: AT

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: 20131106

Ref country code: BE

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: 20131106

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: 20131106

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

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: 20140306

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

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: 20131106

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602008028530

Country of ref document: DE

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

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: 20131106

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: 20131106

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: 20131106

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

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

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: 20131106

26N No opposition filed

Effective date: 20140807

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602008028530

Country of ref document: DE

Effective date: 20140807

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602008028530

Country of ref document: DE

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140522

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: 20140522

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: 20140531

Ref country code: MC

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: 20131106

Ref country code: CH

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

Effective date: 20140531

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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

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: 20131106

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150130

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602008028530

Country of ref document: DE

Effective date: 20141202

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

Ref country code: IE

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

Effective date: 20140522

Ref country code: DE

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

Effective date: 20141202

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: 20140522

Ref country code: FR

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

Effective date: 20140602

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

Ref country code: TR

Payment date: 20150513

Year of fee payment: 8

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

Ref country code: PL

Payment date: 20150415

Year of fee payment: 8

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: 20131106

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

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: 20131106

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: 20131106

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: 20140207

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; INVALID AB INITIO

Effective date: 20080522

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

Ref country code: PL

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

Effective date: 20160522

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 NON-PAYMENT OF DUE FEES

Effective date: 20160522

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

Ref country code: IT

Payment date: 20231124

Year of fee payment: 16