EP1457643A2 - Elektronisches Sicherheitssystem zur Vermeidung eines Überdrehzahlzustandes bei einem Wellenbruch - Google Patents
Elektronisches Sicherheitssystem zur Vermeidung eines Überdrehzahlzustandes bei einem Wellenbruch Download PDFInfo
- Publication number
- EP1457643A2 EP1457643A2 EP04090043A EP04090043A EP1457643A2 EP 1457643 A2 EP1457643 A2 EP 1457643A2 EP 04090043 A EP04090043 A EP 04090043A EP 04090043 A EP04090043 A EP 04090043A EP 1457643 A2 EP1457643 A2 EP 1457643A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- light guide
- safety system
- measuring
- light
- 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
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
- 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
-
- 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
- F01D21/045—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 special arrangements in stators or in rotors dealing with breaking-off of part of rotor
-
- 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
- F05D2270/00—Control
- F05D2270/01—Purpose of the control system
- F05D2270/09—Purpose of the control system to cope with emergencies
-
- 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
- F05D2270/00—Control
- F05D2270/01—Purpose of the control system
- F05D2270/09—Purpose of the control system to cope with emergencies
- F05D2270/091—Purpose of the control system to cope with emergencies in particular sudden load loss
-
- 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
- F05D2300/00—Materials; Properties thereof
- F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
- F05D2300/614—Fibres or filaments
Definitions
- the invention relates to an electronic security system to avoid an overspeed condition in the event of a shaft break by detection of the breaking of the wave and subsequent Interrupting further energy supply, in particular in a gas turbine engine.
- the invention has for its object a security system to detect a wave break and to interrupt the further supply of energy to the drive side End of the shaft to be specified, which with little assembly, construction and space requirements reliably and with little wear works and ensures short switch-off times.
- the essence of the invention consists in the fixed assignment of a Fiber to the scope of the wave to be monitored, and indeed in their longitudinal direction and rotating with it, as well the severing of the wave break Optical fiber and the corresponding interruption of the forwarding the one serving as a measuring element in this way Light guide on the input side of light. This interruption is at the other end of the measuring light guide detected by a sensor and via an evaluation and control electronics as a signal for switching off the Drive energy supply used.
- the security system designed on this basis is required with the possible external arrangement of the necessary ones optical sensors and light sources no cooling devices. It is only a small number of simple ones Components necessary. The assembly, repair and The maintenance effort is accordingly low. Due to the Speed of light and the associated fast Detection of a wave break can result in short switch-off times for the supply of energy.
- measuring light guides can be provided, also as a loop for Light entry side can be returned.
- the light source and the sensors can be the measuring light guide immediately upstream or - using additional light guide for feeding and routing of light - be arranged externally.
- the entry side of the measuring light guide can be axially centric or be offset to the center.
- the light emission can be done and recorded in the axial or radial direction become.
- the additional light guide or the light source for feeding of light can be ring-shaped to several measuring light guides arranged in a circular line To supply light from only one light source.
- the measuring sleeve of an inner tube and an outer tube.
- the inner tube there are longitudinal grooves for Recording the measuring light guide, so that with one with one Breakage associated breakage of the measuring sleeve also the measuring light guide is cut immediately.
- the outer tube, the Strength higher than that of the inner tube serves as a support the measuring light guide / s and the inner tube.
- the measuring sleeve 4 consists of a Inner tube 7 and an outer tube 8, which on both end faces each closed by a base plate 9a, b and 10a, b are.
- the outer peripheral surface of the inner tube 7 there are two opposite, in the longitudinal direction of the Measuring sleeve 4 holding grooves 11, 12 into which a measuring light guide 13 - flush with the surface of the inner tube 7 finally - is inserted.
- the outer tube (support tube) 8 supports the measuring light guide 13 against the high centrifugal forces towards the outside and fixes it radially in the holding grooves 11, 12.
- the measuring light guide 13 is thus in the Circumferential wall of the measuring sleeve 4 embedded.
- the outer tube 8, that of absorbing the centrifugal forces and centering the Measuring sleeve 4 serves one of the prevailing force effects appropriate strength. That as a break tube acting inner tube 7, however, consists of one less solid, easily breaking material.
- the measuring light guide 13 runs outgoing from a central inlet bore 14 in the rear Base plate 9a, first between the two rear base plates 9a and 10a, then in the lower holding groove 12, then between the two front base plates 9b and 10b and finally back to the home page in the top Retaining groove 11 to in an exit hole 15 on the outer edge the rear bottom plate 9a to end.
- the Light source 18 and optical sensor 19 can also be used directly behind the inlet or outlet bore 14, 15 be arranged for the measuring light guide 13, in which If appropriate cooling devices are provided have to.
- the optical sensor 19 is with evaluation electronics 20 and an electronic control 21 connected, via which is integrated into the fuel supply Fuel shutoff valve 22 based on that of the optical sensor 19 received signals is driven.
- first additional light guide 16 About the light-emitting end in front of the central arranged input hole 14 lying light supply cable (first additional light guide 16) is constantly light passed through the measuring light guide 13 and due to the rotation the measuring sleeve 4 on the light exit side (exit hole 15) as a constantly repeating light pulse receive. If the low-pressure turbine shaft breaks 1 also breaks the one connected to it at both ends, otherwise arranged with play in the low-pressure turbine shaft 1 Measuring sleeve 4 and preferably their low strength having inner tube 7 (predetermined breaking tube). by virtue of fixing the measuring light guide 13 in the holding groove 11, 12 this is also severed quickly and the light beam interrupted.
- the registered by the optical sensor 19 Interruption of the light supply serves as a signal for the evaluation electronics 20 and the electronic control 21 to indicate a wave break and to interrupt the Fuel supply to the fuel shutoff valve 22 to the Low-pressure turbine shaft 1 no longer accelerate and the dangerous ones resulting from overspeed Limit or prevent consequences.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Optical Transform (AREA)
Abstract
Description
- Fig. 1
- eine Schnittansicht des hinteren, antriebsseitigen Endes einer hinsichtlich eines Wellenbruches zu überwachenden Niederdruckturbinenwelle, an dem der Niederdruckturbinenrotor angebracht ist;
- Fig. 2
- eine Schnittansicht des vorderen, abtriebsseitigen Endes der Niederdruckturbinenwelle, mit dem der Fan eines Gasturbinen-Triebwerks verbunden ist; und
- Fig. 3
- eine Schnittansicht längs der Linie AA in Fig. 1.
- 1
- Niederdruckturbinenwelle, Welle
- 2
- Niederdruckturbinenrotor, Antriebsseite
- 3
- Fan (Verdichter), Abtriebsseite
- 4
- Messhülse
- 5, 6
- Befestigungselemente
- 7
- Innenrohr v. 4, (Sollbruchrohr)
- 8
- Außenrohr v. 4, (Stützrohr)
- 9a, 10a
- hintere Bodenplatten v. 4
- 9b, 10b
- vordere Bodenplatten v. 4
- 11, 12
- Haltenuten v. 7
- 13
- Mess-Lichtleiter
- 14
- Eingangsbohrung
- 15
- Ausgangsbohrung
- 16
- Zusatzlichtleiter (Lichtzuführung)
- 17
- Zusatzlichtleiter (Lichtabführung)
- 18
- Lichtquelle
- 19
- Optischer Sensor
- 20
- Auswerteelektronik
- 21
- Elektronische Steuerung
- 22
- Kraftstoff-Absperrventil
Claims (11)
- Elektronisches Sicherheitssystem zur Vermeidung eines Überdrehzahlzustandes bei einem Wellenbruch durch Detektion des Wellenbruchs und anschließendes Unterbrechen der weiteren Energiezufuhr, insbesondere bei einem Gasturbinen-Triebwerk, gekennzeichnet durch mindestens einen sich in Längsrichtung der Welle (1) erstreckenden und der Welle fest zugeordneten, mit dieser rotierenden Mess-Lichtleiter (13), dem eingangsseitig eine Lichtquelle (18) und an einer axialen oder radialen Lichtaustrittsseite ein optischer Sensor (19) zugeordnet sind, wobei eine durch Wellenbruch bewirkte Durchtrennung der(s) mit der Welle (1) verbundenen Mess-Lichtleiter(s) (13) und der Empfang veränderter Lichtsignale am optischen Sensor (19) über eine Auswerte- und Steuerelektronik (20, 21) den Wellenbruch detektiert und die Energiezufuhr zur Antriebsseite der Welle (1) unterbricht.
- Sicherheitssystem nach Anspruch 1, dadurch gekennzeichnet, dass die Lichtquelle (18) und der Sensor (19) der Lichteintrittsseite bzw. der Lichtaustrittseite des Lichtleiters (13) unmittelbar zugeordnet sind.
- Sicherheitssystem nach Anspruch 1, dadurch gekennzeichnet, dass die Lichtquelle (18) und der Sensor (19) extern angeordnet und jeweils über Zusatzlichtleiter (16, 17) dem/den an die Welle (1) gekoppelten Mess-Lichtleiter/n (13) zugeordnet sind.
- Sicherheitssystem nach Anspruch 1, dadurch gekennzeichnet, dass des Eingangsseite des mindestens einen Mess-Lichtleiters (13) in der Achse der Welle (1) liegt, während der/die Mess-Lichtleiter (13) und dessen/deren Ausgangsseite analog dem Wellenumfang dezentral angeordnet sind.
- Sicherheitssystem nach Anspruch 1, dadurch gekennzeichnet, dass die Eingangsseite und die Ausgangsseite des mindestens einen Mess-Lichtleiters (13) analog dem Wellenumfang dezentral angeordnet sind.
- Sicherheitssystem nach Anspruch 5, dadurch gekennzeichnet, dass zur Lichtzufuhr zu den Lichtleitern (13) ein ringförmiger Lichtleiter oder eine ringförmige Lichtquelle angeordnet ist.
- Sicherheitssystem nach Anspruch 6, dadurch gekennzeichnet, dass der ringförmige Lichtleiter unmittelbar mit den Mess-Lichtleitern (13) verbunden ist.
- Sicherheitssystem nach Anspruch 1, dadurch gekennzeichnet, dass der mindestens eine Mess-Lichtleiter (13) als Schleife geführt ist, wobei sich die Eingangs- und Ausgangsseite an demselben Wellenende befinden.
- Sicherheitssystem nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Welle (1) eine an deren Enden befestigte Messhülse (4) zugeordnet ist, an oder in der der mindestens eine Mess-Lichtleiter (13) gehalten ist.
- Sicherheitssystem nach Anspruch 9, dadurch gekennzeichnet, dass die Messhülse (4) ein Innenrohr (7) mit mindestens einer in dessen Außenumfangsfläche ausgebildeter Haltenut (11, 12), in der mindestens ein Mess-Lichtleiter (13) gehalten ist, und ein das Innenrohr (7) umhüllendes Außenrohr (8) zur radialen Abstützung und im Zusammenwirken mit der Haltenut zur Abstützung in Umfangsrichtung der/des Mess-Lichtleiter/s (13) umfasst.
- Sicherheitssystem nach Anspruch 11, dadurch gekennzeichnet, dass das als Sollbruchrohr fungierende Innenrohr (7) aus einem Material mit geringer Festigkeit besteht.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10310900 | 2003-03-13 | ||
DE10310900A DE10310900A1 (de) | 2003-03-13 | 2003-03-13 | Elekronisches Sicherheitssystem zur Vermeidung eines Überdrehzahlzustandes bei einem Wellenbruch |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1457643A2 true EP1457643A2 (de) | 2004-09-15 |
EP1457643A3 EP1457643A3 (de) | 2007-03-21 |
EP1457643B1 EP1457643B1 (de) | 2009-07-08 |
Family
ID=32748218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04090043A Expired - Fee Related EP1457643B1 (de) | 2003-03-13 | 2004-02-11 | Elektronisches Sicherheitssystem zur Vermeidung eines Überdrehzahlzustandes bei einem Wellenbruch |
Country Status (3)
Country | Link |
---|---|
US (1) | US7002172B2 (de) |
EP (1) | EP1457643B1 (de) |
DE (2) | DE10310900A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005083237A1 (de) * | 2004-02-27 | 2005-09-09 | Mtu Aero Engines Gmbh | Verfahren und vorrichtung zur identifikation eines wellenbruchs und/oder einer überdrehzahl an einer gasturbine |
WO2005093221A1 (de) * | 2004-03-23 | 2005-10-06 | Siemens Aktiengesellschaft | Anordnung und verfahren zur beschädigungsdetektion an einer komponente einer strömungsmaschine |
EP3435058A1 (de) * | 2017-07-28 | 2019-01-30 | Rolls-Royce Deutschland Ltd & Co KG | Anordnung und verfahren zur erkennung eines wellenbruchs |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004026366A1 (de) * | 2004-05-29 | 2005-12-15 | Mtu Aero Engines Gmbh | Einrichtung zur Detektion eines Wellenbruchs an einer Gasturbine sowie Gasturbine |
DE102004033924A1 (de) * | 2004-07-14 | 2006-02-09 | Mtu Aero Engines Gmbh | Einrichtung zur Detektion eines Wellenbruchs an einer Gasturbine sowie Gasturbine |
DE102004047892A1 (de) * | 2004-10-01 | 2006-04-06 | Mtu Aero Engines Gmbh | Gasturbine und Verfahren zum Abschalten einer Gasturbine bei Identifikation eines Wellenbruchs |
DE102005036879A1 (de) * | 2005-05-12 | 2006-11-16 | Logos-Innovationen Gmbh | Hebevorrichtung mit einer Antriebseinheit zum Heben einer Lastaufnahme |
US7536850B2 (en) * | 2005-09-27 | 2009-05-26 | Pratt & Whitney Canada Corp. | Emergency fuel shutoff system |
DE102006017790B3 (de) * | 2006-04-15 | 2007-07-26 | Mtu Aero Engines Gmbh | Einrichtung zur Detektion eines Wellenbruchs an einer Gasturbine sowie Gasturbine |
US7581377B2 (en) * | 2006-06-14 | 2009-09-01 | Pratt & Whitney Canada Corp. | Low-cost frangible cable for gas turbine engine |
FR2907839B1 (fr) * | 2006-10-25 | 2011-06-17 | Snecma | Methode pour reduire la vitesse en cas de rupture d'arbre de turbine de moteur a turbine a gaz |
FR2923540B1 (fr) * | 2007-11-13 | 2010-01-29 | Snecma | Dispositif de detection de rupture d'un arbre de turbomachine |
US9169742B2 (en) * | 2010-02-26 | 2015-10-27 | Pratt & Whitney Canada Corp. | Electronic shaft shear detection conditioning circuit |
US10167784B2 (en) | 2012-10-26 | 2019-01-01 | Pratt & Whitney Canada Corp. | System for detecting shaft shear event |
DE102013101791A1 (de) * | 2013-02-22 | 2014-08-28 | Rolls-Royce Deutschland Ltd & Co Kg | Fluggasturbine mit einer ersten drehbaren Welle |
US10316689B2 (en) | 2016-08-22 | 2019-06-11 | Rolls-Royce Corporation | Gas turbine engine health monitoring system with shaft-twist sensors |
IT202000028520A1 (it) | 2020-11-26 | 2022-05-26 | Ge Avio Srl | Sistema e metodo per la mitigazione di velocita' eccessiva di rotore |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5411364A (en) * | 1993-12-22 | 1995-05-02 | Allied-Signal Inc. | Gas turbine engine failure detection system |
DE19727296A1 (de) * | 1997-06-27 | 1999-01-07 | Mtu Muenchen Gmbh | Einrichtung zur Notabschaltung einer Gasturbine |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4712372A (en) | 1985-09-18 | 1987-12-15 | Avco Corporation | Overspeed system redundancy monitor |
DE19857552A1 (de) * | 1998-12-14 | 2000-06-15 | Rolls Royce Deutschland | Verfahren zum Erkennen eines Wellenbruches in einer Strömungskraftmaschine |
US6607349B2 (en) * | 2001-11-14 | 2003-08-19 | Honeywell International, Inc. | Gas turbine engine broken shaft detection system |
-
2003
- 2003-03-13 DE DE10310900A patent/DE10310900A1/de not_active Withdrawn
-
2004
- 2004-02-11 DE DE502004009705T patent/DE502004009705D1/de not_active Expired - Lifetime
- 2004-02-11 EP EP04090043A patent/EP1457643B1/de not_active Expired - Fee Related
- 2004-03-12 US US10/798,367 patent/US7002172B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5411364A (en) * | 1993-12-22 | 1995-05-02 | Allied-Signal Inc. | Gas turbine engine failure detection system |
DE19727296A1 (de) * | 1997-06-27 | 1999-01-07 | Mtu Muenchen Gmbh | Einrichtung zur Notabschaltung einer Gasturbine |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005083237A1 (de) * | 2004-02-27 | 2005-09-09 | Mtu Aero Engines Gmbh | Verfahren und vorrichtung zur identifikation eines wellenbruchs und/oder einer überdrehzahl an einer gasturbine |
WO2005093221A1 (de) * | 2004-03-23 | 2005-10-06 | Siemens Aktiengesellschaft | Anordnung und verfahren zur beschädigungsdetektion an einer komponente einer strömungsmaschine |
EP3435058A1 (de) * | 2017-07-28 | 2019-01-30 | Rolls-Royce Deutschland Ltd & Co KG | Anordnung und verfahren zur erkennung eines wellenbruchs |
US10655493B2 (en) | 2017-07-28 | 2020-05-19 | Rolls-Royce Deutschland Ltd & Co Kg | Arrangement, turbo engine and method for the recognition of a shaft breakage of a shaft |
Also Published As
Publication number | Publication date |
---|---|
US20050047913A1 (en) | 2005-03-03 |
US7002172B2 (en) | 2006-02-21 |
DE502004009705D1 (de) | 2009-08-20 |
DE10310900A1 (de) | 2004-09-23 |
EP1457643A3 (de) | 2007-03-21 |
EP1457643B1 (de) | 2009-07-08 |
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