EP0357590A1 - Chaudière de récupération - Google Patents

Chaudière de récupération Download PDF

Info

Publication number
EP0357590A1
EP0357590A1 EP89890214A EP89890214A EP0357590A1 EP 0357590 A1 EP0357590 A1 EP 0357590A1 EP 89890214 A EP89890214 A EP 89890214A EP 89890214 A EP89890214 A EP 89890214A EP 0357590 A1 EP0357590 A1 EP 0357590A1
Authority
EP
European Patent Office
Prior art keywords
waste heat
circulation
heating surface
water
drum
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
EP89890214A
Other languages
German (de)
English (en)
Other versions
EP0357590B1 (fr
Inventor
Kurt Budin
Georg Dipl.-Ing. Dr. Gasteiger
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.)
AE ENERGIETECHNIK GMBH
Original Assignee
Simmering Graz Pauker AG
Austrian Energy and Environment SGP Waagner Biro GmbH
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=3528112&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0357590(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Simmering Graz Pauker AG, Austrian Energy and Environment SGP Waagner Biro GmbH filed Critical Simmering Graz Pauker AG
Publication of EP0357590A1 publication Critical patent/EP0357590A1/fr
Application granted granted Critical
Publication of EP0357590B1 publication Critical patent/EP0357590B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00Methods of steam generation characterised by form of heating method
    • F22B1/02Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • F22B1/1807Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines using the exhaust gases of combustion engines
    • F22B1/1815Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines using the exhaust gases of combustion engines using the exhaust gases of gas-turbines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B29/00Steam boilers of forced-flow type
    • F22B29/04Steam boilers of forced-flow type of combined-circulation type, i.e. in which convection circulation due to the difference in specific gravity between cold and hot water is promoted by additional measures, e.g. by injecting pressure-water temporarily

Definitions

  • the invention relates to a waste heat steam generator in use behind a gas turbine, at least one drum being provided, which is integrated in a circulation system consisting of at least one downpipe, at least one evaporator heating surface and at least one riser pipe.
  • Waste heat steam generators are usually designed in two types, e.g. with natural circulation or forced circulation.
  • natural circulation the evaporator bundles are arranged in a horizontal flue gas duct in a vertical installation position and connected to at least one steam drum via downpipes and riser pipes.
  • the heating surface tubes from the superheater and economizer or from various other heating surfaces, if present, can be designed in a horizontal and / or vertical arrangement.
  • the heating surface pipes from the superheater, evaporator and economizer or other heating surfaces, if present, are arranged in a vertical flue gas duct in a horizontal installation position.
  • the evaporator heating surfaces are connected to at least one steam drum via downpipes, circulation pumps and risers.
  • the circulation pumps which ensure the water circulation in the evaporator, are associated with a cost and labor in the construction of the system and also form a disruptive factor.
  • the object of the present invention is to provide a waste heat steam generator which is simulated by a gas turbine and has the advantage that the water circulation is ensured without the use of a circulation pump.
  • an injector is provided in the downpipe system, which additionally feeds water in the flow direction in the downpipe system during the start-up phase.
  • the acceleration of the water circulation in the start-up phase can be achieved by an injector arranged in the riser pipe system, which feeds water into the riser pipe system in the flow direction.
  • a device for feeding steam, steam water mixture, gases such as nitrogen or the like into the riser pipe system is provided to accelerate the water circulation in the start-up phase.
  • a lockable connecting line can be provided between the inlet and the outlet header of the evaporator heating surfaces in order to accelerate the water circulation in the start-up phase.
  • the waste heat steam generator in question is provided in a vertical version with an evaporator heating surface 1, a drum 2, a down pipe system 3, a riser pipe system 4 and a feed line 5 with a feed pump 6.
  • the drum 2 is connected on the water side to the downpipe system 3, which opens into an inlet header 7 via a lower stroke 29, to which the pipe system of the evaporator heating surface 1 is connected.
  • the term "lower stroke” is to be understood so that the downpipes 3 are led down to a level which is lower than the inlet manifold 7 of the evaporator heating surface 1, so that the water flows from the bottom up before it enters the collector.
  • the "lower stroke” can thus be understood as a kind of water bag.
  • the evaporator heating surface 1 is connected on the outlet side to an outlet header 8, into which the riser pipe system 4 opens, which is connected to the steam chamber of the drum 2 via an overtravel 9, or directly via a pipe system 10 to the water chamber 11 of the drum 2.
  • overstroke is to be understood such that the steam / water mixture is introduced into the drum 2 higher than the level of the water in the drum.
  • the feed pump 6 promotes the like from a feed water tank. Via the feed line 5 water into the water space 11 for make-up.
  • an injector 12 is provided in the downpipe system 3, which is connected to a shut-off device 14, e.g. a valve, a tap or the like.
  • a shut-off device 14 e.g. a valve, a tap or the like.
  • provided line 13 is connected to the feed line 5.
  • a second variant provides a pump 16 in a bypass line 15 which connects the downpipe system 3 with an injector 17 Riser pipe system 4 connects.
  • This pump 16 feeds boiler water into the riser pipe system 4 in its direction of flow, as a result of which the water circulation is dynamically excited in the start-up phase and the excitation can be switched off again after the stationary circulation state has been reached by switching off the pump 16.
  • the riser pipe system 4 can be fed from a line 18 in which a shut-off device 19, e.g. a valve, a tap or the like. steam, nitrogen or another gas. This measure increases the thermosiphon effect and ensures an acceleration of the circulation process in the start-up phase.
  • a shut-off device 19 e.g. a valve, a tap or the like. steam, nitrogen or another gas.
  • a fourth variant sees one through a shut-off device 21, e.g. a valve, a tap or the like.
  • lockable line 22 which connects the inlet header 7 to the outlet header 8 of the evaporator heating surface 1.
  • the installation of such a lockable connecting line 22 between at least one inlet and at least one outlet header 7 or 8 of the evaporator heating surfaces 1 ensures that when the first vapor bubbles are formed, they stimulate the water circulation in the start-up phase by direct discharge into the riser pipe system 4.
  • thermosiphon effect of the water circulation can be advantageously influenced by suitable dimensioning of the pipe system of the evaporator heating surfaces 1 and of the downcomer and riser pipe systems 3 and 4.
  • the waste heat boiler design can be retained in the known embodiment and the use of circulation pumps in the circuit can be dispensed with.
  • the evaporator heating surface 1 is arranged in a horizontal arrangement in an exhaust gas duct 23, into which the exhaust gases of one or more gas turbines flow in the direction of arrow A, above and / or below the evaporator heating surface 1, a superheater heating surface 24 can also be provided in a horizontal arrangement, which is connected on the inlet side to the steam chamber 26 of the drum 2 via an inlet collector 30 and a line 25 and on the outlet side leads to the turbine via an outlet collector 31 and a line 27 provided with a shut-off device 28 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP89890214A 1988-08-29 1989-08-18 Chaudière de récupération Expired - Lifetime EP0357590B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2116/88A AT392683B (de) 1988-08-29 1988-08-29 Abhitze-dampferzeuger
AT2116/88 1988-08-29

Publications (2)

Publication Number Publication Date
EP0357590A1 true EP0357590A1 (fr) 1990-03-07
EP0357590B1 EP0357590B1 (fr) 1993-07-21

Family

ID=3528112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89890214A Expired - Lifetime EP0357590B1 (fr) 1988-08-29 1989-08-18 Chaudière de récupération

Country Status (8)

Country Link
EP (1) EP0357590B1 (fr)
KR (1) KR0142330B1 (fr)
CN (1) CN1018574B (fr)
AT (1) AT392683B (fr)
DE (1) DE58904955D1 (fr)
DK (1) DK169109B1 (fr)
ES (1) ES2043114T3 (fr)
FI (1) FI93055C (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993023702A1 (fr) * 1992-05-08 1993-11-25 Cockerill Mechanical Industries S.A. Chaudiere de recuperation de chaleur a circulation induite
DE4441008A1 (de) * 1994-11-17 1996-05-23 Siemens Ag Anlage zur Dampferzeugung nach dem Naturumlaufprinzip und Verfahren zum Anstoß des Wasserumlaufs in einer derartigen Anlage
EP0752556A1 (fr) * 1995-07-07 1997-01-08 Nem B.V. Chaudière de récupération à circulation naturelle
EP0764813A1 (fr) * 1995-09-20 1997-03-26 Nem B.V. Chaudière de récupération, utilisée notamment derrière une turbine à gaz
EP0936404A3 (fr) * 1998-02-16 2002-04-10 BBP Energy GmbH Générateur de vapeur avec plusieurs faisceaux tubulaires
RU2467250C2 (ru) * 2007-01-30 2012-11-20 Сименс Акциенгезелльшафт Способ эксплуатации газопаровой турбинной установки и предназначенная для этого газопаровая турбинная установка
WO2012134926A3 (fr) * 2011-03-28 2013-08-22 Alstom Technology Ltd Procédé de régulation des valeurs transitoires de la température de cuve
EP2944873A4 (fr) * 2013-01-10 2016-01-20 Panasonic Ip Man Co Ltd Dispositif de cycle de rankine, et système de cogénération
RU2575518C2 (ru) * 2011-03-28 2016-02-20 Альстом Текнолоджи Лтд Способ управления переменными температурами барабана
US20160312997A1 (en) * 2015-04-22 2016-10-27 Alstom Technology Ltd. Method and system for gas initiated natural circulation vertical heat recovery steam generator
US9518731B2 (en) 2011-03-23 2016-12-13 General Electric Technology Gmbh Method and configuration to reduce fatigue in steam drums
US10125972B2 (en) 2014-03-21 2018-11-13 Amec Foster Wheeler Energia, S.L.U. Apparatus that provides and evaporation cycle of a natural circulation steam generator in connection with a vertical duct for upward gas flow
EP3835653A1 (fr) * 2019-12-11 2021-06-16 Siemens Aktiengesellschaft Remplissage d'évaporateur à chaud

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1443268A1 (fr) * 2003-01-31 2004-08-04 Siemens Aktiengesellschaft Générateur de vapeur
RU2491477C1 (ru) * 2012-02-08 2013-08-27 Открытое акционерное общество "Татнефть" имени В.Д. Шашина Парогенераторная установка

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2031423A (en) * 1929-03-15 1936-02-18 Foster Wheeler Corp Power plant
US2702026A (en) * 1952-07-31 1955-02-15 Svenska Maskinverken Ab Steam generating plant utilizing heat emanating from many different sources
GB810900A (en) * 1956-03-22 1959-03-25 Vorkauf Heinrich Improvements in steam generators with pressure-resistant, cylindrical casings
US4188916A (en) * 1978-05-15 1980-02-19 Deltak Corporation Waste heat boiler for abstraction of heat energy from gaseous effluent containing corrosive chemical contaminants
GB2070224A (en) * 1980-02-27 1981-09-03 Gen Electric Boiler tube silencer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2031423A (en) * 1929-03-15 1936-02-18 Foster Wheeler Corp Power plant
US2702026A (en) * 1952-07-31 1955-02-15 Svenska Maskinverken Ab Steam generating plant utilizing heat emanating from many different sources
GB810900A (en) * 1956-03-22 1959-03-25 Vorkauf Heinrich Improvements in steam generators with pressure-resistant, cylindrical casings
US4188916A (en) * 1978-05-15 1980-02-19 Deltak Corporation Waste heat boiler for abstraction of heat energy from gaseous effluent containing corrosive chemical contaminants
GB2070224A (en) * 1980-02-27 1981-09-03 Gen Electric Boiler tube silencer

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993023702A1 (fr) * 1992-05-08 1993-11-25 Cockerill Mechanical Industries S.A. Chaudiere de recuperation de chaleur a circulation induite
BE1005793A3 (fr) * 1992-05-08 1994-02-01 Cockerill Mech Ind Sa Chaudiere de recuperation de chaleur a circulation induite.
US5575244A (en) * 1992-05-08 1996-11-19 Cockerill Mechanical Industries S.A. Heat recovery boiler with induced circulation
DE4441008A1 (de) * 1994-11-17 1996-05-23 Siemens Ag Anlage zur Dampferzeugung nach dem Naturumlaufprinzip und Verfahren zum Anstoß des Wasserumlaufs in einer derartigen Anlage
WO1996016298A1 (fr) * 1994-11-17 1996-05-30 Siemens Aktiengesellschaft Installation de production de vapeur selon le principe de circulation naturelle et procede pour amorcer la circulation d'eau dans une telle installation
EP0752556A1 (fr) * 1995-07-07 1997-01-08 Nem B.V. Chaudière de récupération à circulation naturelle
EP0764813A1 (fr) * 1995-09-20 1997-03-26 Nem B.V. Chaudière de récupération, utilisée notamment derrière une turbine à gaz
DE19534802A1 (de) * 1995-09-20 1997-04-10 Nem Bv Abhitzedampferzeuger, insbesondere in der Verwendung hinter einer Gasturbine
EP0936404A3 (fr) * 1998-02-16 2002-04-10 BBP Energy GmbH Générateur de vapeur avec plusieurs faisceaux tubulaires
RU2467250C2 (ru) * 2007-01-30 2012-11-20 Сименс Акциенгезелльшафт Способ эксплуатации газопаровой турбинной установки и предназначенная для этого газопаровая турбинная установка
US9518731B2 (en) 2011-03-23 2016-12-13 General Electric Technology Gmbh Method and configuration to reduce fatigue in steam drums
JP2014512505A (ja) * 2011-03-28 2014-05-22 アルストム テクノロジー リミテッド ドラム温度過渡を制御する方法
RU2575518C2 (ru) * 2011-03-28 2016-02-20 Альстом Текнолоджи Лтд Способ управления переменными температурами барабана
CN103518099A (zh) * 2011-03-28 2014-01-15 阿尔斯通技术有限公司 控制鼓筒温度瞬变的方法
CN103518099B (zh) * 2011-03-28 2017-05-17 通用电器技术有限公司 控制鼓筒温度瞬变的方法
WO2012134926A3 (fr) * 2011-03-28 2013-08-22 Alstom Technology Ltd Procédé de régulation des valeurs transitoires de la température de cuve
US9638066B2 (en) 2013-01-10 2017-05-02 Panasonic Intellectual Property Management Co., Ltd. Rankine cycle apparatus and combined heat and power system
EP2944873A4 (fr) * 2013-01-10 2016-01-20 Panasonic Ip Man Co Ltd Dispositif de cycle de rankine, et système de cogénération
US10125972B2 (en) 2014-03-21 2018-11-13 Amec Foster Wheeler Energia, S.L.U. Apparatus that provides and evaporation cycle of a natural circulation steam generator in connection with a vertical duct for upward gas flow
EP3091280A1 (fr) * 2015-04-22 2016-11-09 General Electric Technology GmbH Procédé et système pour générateur de vapeur à récupération de chaleur vertical à circulation naturelle initiée par un gaz
US9982881B2 (en) 2015-04-22 2018-05-29 General Electric Technology Gmbh Method and system for gas initiated natural circulation vertical heat recovery steam generator
US20160312997A1 (en) * 2015-04-22 2016-10-27 Alstom Technology Ltd. Method and system for gas initiated natural circulation vertical heat recovery steam generator
EP3835653A1 (fr) * 2019-12-11 2021-06-16 Siemens Aktiengesellschaft Remplissage d'évaporateur à chaud
WO2021115663A1 (fr) * 2019-12-11 2021-06-17 Siemens Aktiengesellschaft Recharge d'évaporateur chaud
US11885487B2 (en) 2019-12-11 2024-01-30 Nem Energy B.V. Hot evaporator refilling

Also Published As

Publication number Publication date
DK422389D0 (da) 1989-08-28
ES2043114T3 (es) 1993-12-16
KR0142330B1 (ko) 1998-07-01
DK422389A (da) 1990-03-01
FI93055C (fi) 1995-02-10
AT392683B (de) 1991-05-27
DE58904955D1 (de) 1993-08-26
CN1018574B (zh) 1992-10-07
ATA211688A (de) 1990-10-15
KR900003582A (ko) 1990-03-26
FI93055B (fi) 1994-10-31
CN1041438A (zh) 1990-04-18
FI893754A0 (fi) 1989-08-09
DK169109B1 (da) 1994-08-15
FI893754A (fi) 1990-03-01
EP0357590B1 (fr) 1993-07-21

Similar Documents

Publication Publication Date Title
AT394100B (de) Abhitze-dampferzeuger
EP0357590B1 (fr) Chaudière de récupération
EP0425717B1 (fr) Générateur de vapeur à passage unique
DE69018693T2 (de) Kraftwerk mit kombiniertem Zyklus.
EP1059488B1 (fr) Procédé et dispositif pour réchauffer un milieu liquide
EP0635113A1 (fr) Procede de generation de vapeur dans une chaudiere a passage force unique
EP2324285B1 (fr) Générateur de vapeur à récupération de chaleur
DE69812811T2 (de) Verfahren und Anordnung für Kombikraftwerk
DE19901656A1 (de) Verfahren und Vorrichtung zur Regelung der Temperatur am Austritt eines Dampfüberhitzers
EP0777036A1 (fr) Conduite chimique d'un cycle eau-vapeur
EP0981014A1 (fr) Centrale d'énergie et procédé pour sa mise en marche et pour la purification de son cycle eau-vapeur
EP0663561A1 (fr) Générateur de vapeur
DE60305707T2 (de) Verdampfervorrichtung
DE4300192A1 (de) Verfahren zum Betrieb von mindestens zwei miteinander verknüpften Abhitzeprozessen und Dampferzeugungsanlage zur Durchführung des Verfahrens
EP0764813B1 (fr) Chaudière de récupération, utilisée notamment derrière une turbine à gaz
DE1959228C3 (de) Dampferzeuger
EP0657626B1 (fr) Installation pour l'alimentation de l'eau dans une centrale combinée
DE3108130C2 (de) Vorrichtung zur Dampferzeugung aus der Abwärme und/oder Kühlung industrieller Anlagen
DE1551057A1 (de) Verfahren und Vorrichtung zum trockenen An- und Abfahren von Zwangdurchlaufkesseln
DE2631180C2 (de) Dampferzeuger
DE407343C (de) Dampferzeugungsanlage mit in dem Abzugskanal der Rauch- oder Feuergase angeordnetem, als Niederdruckspeicher dienendem Heisswasserspeicher
EP3472515B1 (fr) Générateur de vapeur vertical à récupération de chaleur
DE3244363C2 (fr)
DE207479C (fr)
DE68903954T2 (de) Abhitzekessel mit zwischenueberhitzer.

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: A1

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

17P Request for examination filed

Effective date: 19900321

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SGP-VA ENERGIE- UND UMWELTTECHNIK GESELLSCHAFT M.B

17Q First examination report despatched

Effective date: 19910320

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: AUSTRIAN ENERGY & ENVIRONMENT SGP/WAAGNER-BIRO GMB

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

REF Corresponds to:

Ref document number: 58904955

Country of ref document: DE

Date of ref document: 19930826

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

Effective date: 19930812

ITF It: translation for a ep patent filed
ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2043114

Country of ref document: ES

Kind code of ref document: T3

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: L. & C. STEINMUELLER GMBH

Effective date: 19940406

NLR1 Nl: opposition has been filed with the epo

Opponent name: L. & C. STEINMUELLER GMBH.

EAL Se: european patent in force in sweden

Ref document number: 89890214.3

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

APAA Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOS REFN

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

Ref country code: FR

Payment date: 19970717

Year of fee payment: 9

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

Ref country code: SE

Payment date: 19970724

Year of fee payment: 9

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

Ref country code: CH

Payment date: 19970804

Year of fee payment: 9

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

PLBO Opposition rejected

Free format text: ORIGINAL CODE: EPIDOS REJO

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: 19951106

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: 19980819

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: 19980831

Ref country code: LI

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

Effective date: 19980831

NLR2 Nl: decision of opposition
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: FR

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

Effective date: 19990430

EUG Se: european patent has lapsed

Ref document number: 89890214.3

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

NLS Nl: assignments of ep-patents

Owner name: AE ENERGIETECHNIK GMBH

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

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: 20050818

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

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

Ref country code: NL

Payment date: 20080813

Year of fee payment: 20

Ref country code: ES

Payment date: 20080922

Year of fee payment: 20

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

Ref country code: GB

Payment date: 20080813

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: 20081020

Year of fee payment: 20

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

Ref country code: BE

Payment date: 20080820

Year of fee payment: 20

BE20 Be: patent expired

Owner name: *AE ENERGIETECHNIK G.M.B.H.

Effective date: 20090818

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20090817

NLV7 Nl: ceased due to reaching the maximum lifetime of a patent

Effective date: 20090818

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20090819

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

Ref country code: NL

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20090818

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20090817

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 EXPIRATION OF PROTECTION

Effective date: 20090819