EP2027368A1 - Gasturbine sowie verfahren zum betreiben einer gasturbine - Google Patents
Gasturbine sowie verfahren zum betreiben einer gasturbineInfo
- Publication number
- EP2027368A1 EP2027368A1 EP06753264A EP06753264A EP2027368A1 EP 2027368 A1 EP2027368 A1 EP 2027368A1 EP 06753264 A EP06753264 A EP 06753264A EP 06753264 A EP06753264 A EP 06753264A EP 2027368 A1 EP2027368 A1 EP 2027368A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas turbine
- turbine
- rotor
- stopping
- generator
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/34—Turning or inching gear
- F01D25/36—Turning or inching gear using electric motors
-
- 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
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/04—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position
- F01D21/06—Shutting-down
-
- 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
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/04—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position
- F01D21/08—Restoring position
Definitions
- the invention relates to a gas turbine, in particular an aircraft engine, according to the preamble of claim 1. Furthermore, the invention relates to a method for operating a gas turbine, in particular an aircraft engine, according to the preamble of claim. 7
- Gas turbines such as aircraft engines, have several assemblies, such as at least one compressor, a combustion chamber and at least one turbine.
- the rotor-side components of the or each turbine are exposed to high temperatures.
- the rotor-side components of the or each turbine cool down at standstill.
- different temperatures develop on a bottom side and a top side due to convection. Due to these different temperatures at the top and the bottom of the rotor, a curvature thereof, a so-called rotor bow, can form.
- the curvature of the rotor can be so strong that rotor-side rotor blades come to rest on a housing of the turbine and stator-side vanes on a hub of the rotor. In this case, a restart of the gas turbine is only possible if after a longer cooling time, the rotor bow has receded again. Otherwise it would be damaged if the gas turbine restarts.
- the present invention is based on the problem to provide a novel gas turbine and a novel method for operating a gas turbine.
- the or each generator after stopping the gas turbine, can be used as a motor to drive a rotor of the respective turbine after switching off the gas turbine for a certain period of time and thereby cause a uniform cooling of the rotor.
- the rotor of the respective turbine for a certain period of time after switching off the gas turbine.
- This allows a uniform cooling of the Rotor of the respective turbine causes or be established. Due to the fact that the rotor of the respective turbine is rotationally driven after stopping the gas turbine for a certain period of time, caused by convection, different temperatures at the bottom and the top of the rotor are avoided, so that the formation of a rotor curvature or a rotor bows is prevented.
- the invention allows earlier restarting of a gas turbine after it has been shut down.
- the or each generator drives the rotor of the respective turbine at a speed of the order of magnitude of between 0.1 rpm and 10 rpm, in particular of the order of magnitude between 0.2 rpm and 5 rpm. min, on.
- an oil circulation is additionally effected or established after stopping, so as to prevent a ⁇ lverkokung after switching off the gas turbine.
- Gas turbines have several assemblies, namely at least one compressor, a combustion chamber and at least one turbine.
- gas turbines are known from the prior art, which have two compressors and two turbines. These are then a low-pressure compressor, a high-pressure compressor, a high-pressure turbine and a low-pressure turbine.
- gas turbines with three compressors and three turbines are known, which are then a low pressure compressor, a medium pressure compressor, a high pressure compressor, a high pressure turbine, a medium pressure turbine and a low pressure turbine.
- One compressor each is connected to a turbine via a shaft.
- the high-pressure turbine is connected to the high-pressure compressor and the low-pressure turbine to the low-pressure compressor via one shaft.
- the medium-pressure turbine is further coupled to the medium-pressure compressor via a shaft.
- Gas turbines with generators are already known from the prior art, with the generators serving to generate electrical energy.
- the low-pressure turbine may be associated with a generator which draws power during operation of the gas turbine of the low-pressure turbine and generates electrical energy therefrom. The electrical energy generated by the generator is then used for operating cultivation aggregates of the gas turbine or for operating other electrical devices.
- the or each generator which serves to generate electrical energy during operation of the gas turbine is used as an engine after switching off the gas turbine and is therefore operated in engine operation.
- the or each generator then converts, during engine operation, electrical energy into mechanical energy for driving the respective turbine rotor, wherein the respective turbine rotor is driven at a relatively low speed.
- the respective turbine rotor with a speed in the order of 0.1 U / min to 10 U / min, preferably in the order of 0.2 U / min to 5 U / min, is driven.
- the generator of the low-pressure turbine is operated in engine operation in accordance with the present invention after switching off the gas turbine to the rotor of the low-pressure turbine or the rotor-side components of the low-pressure turbine for a to drive or rotate certain time duration.
- a uniform cooling of the rotor-side assemblies of the low-pressure turbine can be effected. Different temperatures on an upper side and a lower side of the rotor-side assemblies of the low-pressure turbine can be avoided.
- an oil circulation in the lubrication system of the respective turbine is established, so as an oil coking after to prevent the shutdown of the gas turbine.
- the oil circulation may be effected by the or each generator also driving an oil pump after shutting off the gas turbine to effect the oil circulation.
- the turbine rotor driven by the generator can effect an oil circulation in which, for example, ribs assigned to the rotor cause a pumping effect in the region of a bearing sump of a rotor bearing and thus cause an oil circulation. In any case, however, prevents an overheating of the oil by an after the shutdown of the gas turbine caused oil circulation and thus reduces ⁇ lverko- kungsgefahr.
- the or each generator may also be operated in engine mode so as to rotate for servicing the rotor-side assemblies of the respective turbine.
- the inspection of rotor-side blades, for example in the so-called Boroskopieren be facilitated.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
- Motor Or Generator Cooling System (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2006/000996 WO2007140730A1 (de) | 2006-06-10 | 2006-06-10 | Gasturbine sowie verfahren zum betreiben einer gasturbine |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2027368A1 true EP2027368A1 (de) | 2009-02-25 |
EP2027368B1 EP2027368B1 (de) | 2010-01-06 |
EP2027368B9 EP2027368B9 (de) | 2012-01-18 |
Family
ID=37866346
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06753264A Ceased EP2027368B9 (de) | 2006-06-10 | 2006-06-10 | Verfahren zum betreiben einer fluggasturbine |
Country Status (4)
Country | Link |
---|---|
US (1) | US9121309B2 (de) |
EP (1) | EP2027368B9 (de) |
DE (1) | DE112006003994A5 (de) |
WO (1) | WO2007140730A1 (de) |
Families Citing this family (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2101043B1 (de) * | 2008-03-11 | 2013-05-29 | Siemens Aktiengesellschaft | Verfahren zum Aufwärmen einer Dampfturbine |
FR2950657A1 (fr) * | 2009-09-29 | 2011-04-01 | Snecma | Procede et dispositif de controle d'une partie tournante du corps haute pression d'un moteur d'avion. |
ITFI20110247A1 (it) * | 2011-11-14 | 2013-05-15 | Nuovo Pignone Spa | "device and method for slow turning of an aeroderivative gas turbine" |
US9605597B2 (en) * | 2013-06-13 | 2017-03-28 | Solar Turbines Incorporated | Variable frequency drive power ride thru |
US9771932B2 (en) * | 2014-02-14 | 2017-09-26 | The Boeing Company | Apparatus, controller and method for controlling the cool down of an aircraft engine rotor |
JP6314226B2 (ja) * | 2014-06-18 | 2018-04-18 | 株式会社日立製作所 | 多軸可変速ガスタービン装置およびその制御方法 |
FR3027061B1 (fr) * | 2014-10-10 | 2019-10-25 | Safran Helicopter Engines | Procede et dispositif de notification d'une autorisation d'arret complet d'un moteur a turbine a gaz d'aeronef |
FR3038003A1 (fr) * | 2015-06-24 | 2016-12-30 | Snecma | Boitier d'accessoires de turbomachine muni d'un moteur-alternateur electrique et procede de fonctionnement d'un tel boitier |
US11149642B2 (en) | 2015-12-30 | 2021-10-19 | General Electric Company | System and method of reducing post-shutdown engine temperatures |
US10174678B2 (en) | 2016-02-12 | 2019-01-08 | United Technologies Corporation | Bowed rotor start using direct temperature measurement |
US10125691B2 (en) | 2016-02-12 | 2018-11-13 | United Technologies Corporation | Bowed rotor start using a variable position starter valve |
US10508601B2 (en) * | 2016-02-12 | 2019-12-17 | United Technologies Corporation | Auxiliary drive bowed rotor prevention system for a gas turbine engine |
US10443507B2 (en) * | 2016-02-12 | 2019-10-15 | United Technologies Corporation | Gas turbine engine bowed rotor avoidance system |
US10443505B2 (en) | 2016-02-12 | 2019-10-15 | United Technologies Corporation | Bowed rotor start mitigation in a gas turbine engine |
US10040577B2 (en) | 2016-02-12 | 2018-08-07 | United Technologies Corporation | Modified start sequence of a gas turbine engine |
US10125636B2 (en) | 2016-02-12 | 2018-11-13 | United Technologies Corporation | Bowed rotor prevention system using waste heat |
US10508567B2 (en) * | 2016-02-12 | 2019-12-17 | United Technologies Corporation | Auxiliary drive bowed rotor prevention system for a gas turbine engine through an engine accessory |
US9664070B1 (en) * | 2016-02-12 | 2017-05-30 | United Technologies Corporation | Bowed rotor prevention system |
US10436064B2 (en) | 2016-02-12 | 2019-10-08 | United Technologies Corporation | Bowed rotor start response damping system |
US10539079B2 (en) | 2016-02-12 | 2020-01-21 | United Technologies Corporation | Bowed rotor start mitigation in a gas turbine engine using aircraft-derived parameters |
EP3211184B1 (de) * | 2016-02-29 | 2021-05-05 | Raytheon Technologies Corporation | System und verfahren zur vermeidung von rotorwölbung |
US10337405B2 (en) | 2016-05-17 | 2019-07-02 | General Electric Company | Method and system for bowed rotor start mitigation using rotor cooling |
US11686212B2 (en) * | 2016-05-24 | 2023-06-27 | General Electric Company | Turbine engine and method of cooling |
US10787933B2 (en) | 2016-06-20 | 2020-09-29 | Raytheon Technologies Corporation | Low-power bowed rotor prevention and monitoring system |
US10358936B2 (en) | 2016-07-05 | 2019-07-23 | United Technologies Corporation | Bowed rotor sensor system |
US10533459B1 (en) * | 2016-07-07 | 2020-01-14 | Kenneth Knecht | Slow turning gear adapter to eliminate turbine bucket wear |
US10221774B2 (en) | 2016-07-21 | 2019-03-05 | United Technologies Corporation | Speed control during motoring of a gas turbine engine |
EP3273006B1 (de) | 2016-07-21 | 2019-07-03 | United Technologies Corporation | Verwendung eines alternierenden anlassers während des anfahrens mit mehreren motoren |
US10384791B2 (en) | 2016-07-21 | 2019-08-20 | United Technologies Corporation | Cross engine coordination during gas turbine engine motoring |
EP3273016B1 (de) | 2016-07-21 | 2020-04-01 | United Technologies Corporation | Koordination während des anlassens eines gasturbinenmotors |
US10618666B2 (en) | 2016-07-21 | 2020-04-14 | United Technologies Corporation | Pre-start motoring synchronization for multiple engines |
US10787968B2 (en) | 2016-09-30 | 2020-09-29 | Raytheon Technologies Corporation | Gas turbine engine motoring with starter air valve manual override |
US10583933B2 (en) | 2016-10-03 | 2020-03-10 | General Electric Company | Method and apparatus for undercowl flow diversion cooling |
US10443543B2 (en) | 2016-11-04 | 2019-10-15 | United Technologies Corporation | High compressor build clearance reduction |
US10823079B2 (en) | 2016-11-29 | 2020-11-03 | Raytheon Technologies Corporation | Metered orifice for motoring of a gas turbine engine |
US11022004B2 (en) * | 2017-03-31 | 2021-06-01 | The Boeing Company | Engine shaft integrated motor |
GB201706361D0 (en) * | 2017-04-21 | 2017-06-07 | Rolls Royce Plc | An auxiliary rotation device for a gas turbine engine and a method of cooling a rotor of a gas turbine engine using an auxiliary rotation device |
US20180372588A1 (en) * | 2017-06-23 | 2018-12-27 | General Electric Company | Propulsion system for an aircraft |
US20180372003A1 (en) * | 2017-06-23 | 2018-12-27 | General Electric Company | Propulsion system for an aircraft |
US10947993B2 (en) | 2017-11-27 | 2021-03-16 | General Electric Company | Thermal gradient attenuation structure to mitigate rotor bow in turbine engine |
US10781754B2 (en) | 2017-12-08 | 2020-09-22 | Pratt & Whitney Canada Corp. | System and method for rotor bow mitigation |
US11549392B2 (en) | 2017-12-14 | 2023-01-10 | General Electric Company | Structure and method to mitigate rotor bow in turbine engine |
US10760498B2 (en) | 2018-01-04 | 2020-09-01 | General Electric Company | System and method for removing rotor bow in a gas turbine engine using mechanical energy storage device |
GB2571992A (en) * | 2018-03-16 | 2019-09-18 | Rolls Royce Plc | Gas turbine engine and method of maintaining a gas turbine engine |
US11286855B2 (en) | 2019-03-15 | 2022-03-29 | General Electric Company | Systems and methods for operating a turbine engine |
US12084985B2 (en) | 2020-11-16 | 2024-09-10 | Kenneth Knecht | Digital shaft positioning for a turbine rotor |
US11879411B2 (en) | 2022-04-07 | 2024-01-23 | General Electric Company | System and method for mitigating bowed rotor in a gas turbine engine |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
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DE524329C (de) * | 1928-08-31 | 1931-05-13 | Siemens Schuckertwerke Akt Ges | Einrichtung zum langsamen Drehen einer Dampfturbinenwelle |
CH349625A (de) | 1956-05-16 | 1960-10-31 | Licentia Gmbh | Einrichtung zum Drehen des Rotors eines Turbosatzes, der aus einer Turbine mit angekuppeltem Generator besteht |
US3793905A (en) * | 1972-08-14 | 1974-02-26 | Twin Disc Inc | Gas turbine starting and auxiliary turning mechanism |
US4309870A (en) * | 1979-10-01 | 1982-01-12 | Carrier Corporation | Lubricating system for a turbomachine including a method of operating same |
US4452037A (en) * | 1982-04-16 | 1984-06-05 | Avco Corporation | Air purge system for gas turbine engine |
US4854120A (en) * | 1986-09-26 | 1989-08-08 | Cef Industries, Inc. | Performance envelope extension method for a gas turbine engine |
US4733529A (en) | 1986-09-26 | 1988-03-29 | Cef Industries, Inc. | Performance envelope extension device for a gas turbine engine |
CA2273944C (en) * | 1996-12-03 | 2004-07-06 | Elliott Energy Systems, Inc. | Electrical system for turbine/alternator on common shaft |
US6031294A (en) * | 1998-01-05 | 2000-02-29 | Capstone Turbine Corporation | Turbogenerator/motor controller with ancillary energy storage/discharge |
US6125624A (en) * | 1998-04-17 | 2000-10-03 | Pratt & Whitney Canada Corp. | Anti-coking fuel injector purging device |
US6237322B1 (en) * | 1999-06-21 | 2001-05-29 | Pratt & Whitney Canada Corp. | Oil pump |
DE50206249D1 (de) * | 2001-10-30 | 2006-05-18 | Alstom Technology Ltd | Turbomaschine |
US7188475B2 (en) * | 2003-12-18 | 2007-03-13 | Honeywell International, Inc. | Starting and controlling speed of a two spool gas turbine engine |
-
2006
- 2006-06-10 US US12/308,211 patent/US9121309B2/en not_active Expired - Fee Related
- 2006-06-10 EP EP06753264A patent/EP2027368B9/de not_active Ceased
- 2006-06-10 DE DE112006003994T patent/DE112006003994A5/de not_active Withdrawn
- 2006-06-10 WO PCT/DE2006/000996 patent/WO2007140730A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2007140730A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20090301053A1 (en) | 2009-12-10 |
DE112006003994A5 (de) | 2009-05-20 |
WO2007140730A1 (de) | 2007-12-13 |
EP2027368B1 (de) | 2010-01-06 |
US9121309B2 (en) | 2015-09-01 |
EP2027368B9 (de) | 2012-01-18 |
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