EP1725743A1 - Procede et dispositif pour detecter des impuretes sur des composants d'une turbine - Google Patents

Procede et dispositif pour detecter des impuretes sur des composants d'une turbine

Info

Publication number
EP1725743A1
EP1725743A1 EP05716854A EP05716854A EP1725743A1 EP 1725743 A1 EP1725743 A1 EP 1725743A1 EP 05716854 A EP05716854 A EP 05716854A EP 05716854 A EP05716854 A EP 05716854A EP 1725743 A1 EP1725743 A1 EP 1725743A1
Authority
EP
European Patent Office
Prior art keywords
turbine
vibration
characteristic value
component
components
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
EP05716854A
Other languages
German (de)
English (en)
Other versions
EP1725743B1 (fr
Inventor
Michael Dankert
Matthias Oechsner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to EP05716854A priority Critical patent/EP1725743B1/fr
Publication of EP1725743A1 publication Critical patent/EP1725743A1/fr
Application granted granted Critical
Publication of EP1725743B1 publication Critical patent/EP1725743B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F01D25/002—Cleaning of turbomachines

Definitions

  • the invention relates to a method and a device for detecting impurities on turbine components of a turbine, in particular a gas turbine, for generating electrical energy.
  • the hot gas is fed to the turbine blades of the turbine and thereby generates a rotation of the turbine blade ring.
  • All turbine components that come into contact with the hot gas are at risk of contamination, since at least some of the dirt particles are deposited on the turbine components when the contaminated hot gas comes into contact with the turbine components.
  • the turbine blades are particularly affected.
  • the impurities change the properties of the turbine, especially its efficiency. Furthermore, these impurities can also lead to an excessive load on the turbine.
  • the contaminants usually form undesirable deposits on the affected turbine components, the fuel used, the ambient conditions or the operating mode of the turbine influencing how strongly and / or how quickly these deposits form.
  • the deposits must be removed by cleaning the affected turbine components.
  • the visual inspection can show, for example, that cleaning is actually not yet necessary, or that there may even be damage to turbine components.
  • the invention is therefore based on the object of specifying an improved method and a device for detecting impurities on turbine components of a turbine, by means of which, in particular, disassembly of the turbine is avoided. Furthermore, this method and the device should make it possible to determine an optimal cleaning time as possible.
  • the invention is achieved by a method for detecting impurities on turbine components of a turbine, wherein at least one current vibration characteristic of at least one turbine component is determined during operation of the turbine.
  • the invention is based on the consideration that, in particular, the rotating components of a turbine vibrate as a result of the forces acting on them.
  • This vibration can be more or less pronounced in terms of its amplitude and / or damping and can range from a rapidly decaying shock to an undamped harmonic vibration.
  • the frequency with which the affected turbine component vibrates can be used as the vibration characteristic value.
  • vibrations can be determined in every operating situation of the turbine, ie also in normal operation.
  • the characteristic vibration value is advantageously determined during the operation of the turbine.
  • Some vibration properties of a turbine component which is contaminated with hot gas are expressed during operation of the turbine, that is to say when the turbine is subjected to hot gas and the turbine blades are rotating.
  • forces act on the components of a turbine in operation, whereupon the components concerned react in response with a more or less pronounced vibration.
  • the type of vibration excited thereby depends on the degree of contamination of the component. For example, the mass of the component changes as a result of the contamination. As a result, the vibration of this component that occurs during operation is more strongly damped and / or has a different frequency than an uncontaminated component.
  • the vibration characteristic value is determined during a turbine shutdown.
  • the natural frequency of a component that is contaminated shifts compared to a component that is not contaminated.
  • this can be determined, for example, by directly or indirectly exciting the component, for example by means of an impact, and by measuring the component vibration that occurs.
  • the vibration characteristic value is advantageously compared with a vibration reference value which is assigned to a corresponding, non-contaminated turbine component. For example, the natural frequency of the soiled and nes corresponding corresponding, not contaminated turbine component are determined and compared with each other.
  • the turbine component is a turbine blade.
  • the turbine blades are those turbine components that are most in contact with the hot gas during operation. It is therefore to be expected that deposits with impurities will form, in particular on the turbine blades, and the operation of the turbine will be impaired as a result. It is therefore particularly advantageous to examine one, several or all of the turbine blades of the turbine with regard to their current vibration characteristic in order to be able to determine impurities in good time.
  • At least one common vibration characteristic is determined for a number of comparable operated turbine components.
  • the turbine blades of one of these rows are operated in a comparable manner in that the hot gas is applied to these turbine blades in parallel.
  • the turbine blades of a row of blades are therefore equally loaded.
  • the turbine component carries hot gas.
  • Such turbine components include not only the aforementioned turbine blades, but also other components that come into contact with the hot gas, such as hot gas supply lines and / or hot gas lines. In this embodiment of the invention, such turbine components can also be examined for impurities.
  • the vibration characteristic value particularly preferably comprises a natural frequency and / or a vibration frequency and / or a vibration amplitude and / or a damping characteristic value and / or a vibration decay behavior of the turbine component.
  • vibration parameters can be determined during operation or during a turbine shutdown.
  • the turbine components to be examined do not usually have to be separately excited to determine these characteristic values, since they are excited to vibrate anyway during operation due to the forces acting on them (for example centrifugal forces and / or slight imbalances).
  • the corresponding characteristic vibration value is then determined with respect to this vibration or vibrations.
  • the invention furthermore leads to a device for detecting impurities on turbine components of a turbine, at least one sensor unit being provided for determining at least one current vibration characteristic of at least one turbine component. Further preferred embodiments of a device according to the invention are laid down in the corresponding dependent patent claims.
  • FIG shows a device according to the invention for detecting impurities on turbine components of a turbine.
  • the figure shows a device 1 according to the invention for detecting impurities on turbine components of a turbine 3.
  • the turbine 3 is preferably a gas turbine, the turbine blades of which are driven by hot gas.
  • the turbine 3 is coupled to a generator 5.
  • a sensor unit 7 is provided for detecting a vibration characteristic of the turbine blades.
  • This sensor unit can be attached to the outside of the turbine housing and, for example, sound frequencies on the sensor housing.
  • nengetude be arranged and, for example, record the signals on the basis of inductive measurements of passing turbine blades men 30th
  • the sensor unit 7 is designed to be highly integrated and is applied, for example, in the manner of a film to at least one turbine blade.
  • the measured values detected can be read out in a contactless and / or wireless manner.
  • the computing unit 9 u contains a memory 11 in which a vibration reference value is stored, which corresponds to a turbine blade which is not contaminated, that is to say has no deposits.
  • the vibration characteristic value or the vibration reference value can comprise a natural frequency and / or a vibration frequency and / or a vibration amplitude and / or a damping characteristic value and / or a vibration decay behavior of the turbine component.
  • the turbine component is one or more turbine blades.
  • the vibration characteristic value is determined during the operation of the turbine 3 or alternatively or in combination during a turbine shutdown.
  • the computing unit 9 can be implemented, for example, by means of a digital computer, in which an evaluation program is used which balances the determined vibration characteristic values with respect to the turbine blade according to an evaluation algorithm with the stored vibration reference values.
  • a maintenance instruction 13 can be generated, for example based on methods of artificial intelligence.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Control Of Turbines (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

La présente invention concerne un procédé pour détecter des impuretés sur des composants d'une turbine. Ce procédé consiste à déterminer au moins une valeur caractéristique d'oscillation courante d'au moins un composant de turbine pendant le fonctionnement de la turbine, puis à la comparer de préférence à une valeur de référence d'oscillation, ce qui permet d'identifier des impuretés puisque ces dernières modifient la valeur caractéristique d'oscillation du composant de turbine en raison de leur masse.
EP05716854A 2004-03-03 2005-03-01 Procede et dispositif pour detecter des impuretes sur des composants d'une turbine Expired - Lifetime EP1725743B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05716854A EP1725743B1 (fr) 2004-03-03 2005-03-01 Procede et dispositif pour detecter des impuretes sur des composants d'une turbine

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04004981A EP1574674A1 (fr) 2004-03-03 2004-03-03 Procédé et dispositif pour la détection d'impuretés sur des composants de turbine
PCT/EP2005/050881 WO2005085602A1 (fr) 2004-03-03 2005-03-01 Procede et dispositif pour detecter des impuretes sur des composants d'une turbine
EP05716854A EP1725743B1 (fr) 2004-03-03 2005-03-01 Procede et dispositif pour detecter des impuretes sur des composants d'une turbine

Publications (2)

Publication Number Publication Date
EP1725743A1 true EP1725743A1 (fr) 2006-11-29
EP1725743B1 EP1725743B1 (fr) 2007-05-30

Family

ID=34814246

Family Applications (2)

Application Number Title Priority Date Filing Date
EP04004981A Withdrawn EP1574674A1 (fr) 2004-03-03 2004-03-03 Procédé et dispositif pour la détection d'impuretés sur des composants de turbine
EP05716854A Expired - Lifetime EP1725743B1 (fr) 2004-03-03 2005-03-01 Procede et dispositif pour detecter des impuretes sur des composants d'une turbine

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP04004981A Withdrawn EP1574674A1 (fr) 2004-03-03 2004-03-03 Procédé et dispositif pour la détection d'impuretés sur des composants de turbine

Country Status (7)

Country Link
US (1) US20070194773A1 (fr)
EP (2) EP1574674A1 (fr)
JP (1) JP4474459B2 (fr)
CN (1) CN100404797C (fr)
DE (1) DE502005000794D1 (fr)
ES (1) ES2284155T3 (fr)
WO (1) WO2005085602A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8685176B2 (en) * 2006-10-16 2014-04-01 Ecoservices, Llc System and method for optimized gas turbine compressor cleaning and performance measurement
JP5448597B2 (ja) * 2009-06-19 2014-03-19 三菱重工業株式会社 ガスタービン及びこの運転方法
FR2956159B1 (fr) * 2010-02-08 2012-02-10 Snecma Methode de detection automatisee de l'ingestion d'au moins un corps etranger par un moteur a turbine a gaz
CN108916017B (zh) * 2018-06-01 2019-08-23 武汉船用机械有限责任公司 一种船用透平货油泵故障诊断系统
US12385808B2 (en) 2023-08-23 2025-08-12 Rtx Corporation Accretion detection systems and associated methods for gas turbine engines
US12435592B2 (en) * 2023-11-27 2025-10-07 Halliburton Energy Services, Inc. Self-cleaning impulse turbine and bearing in fluid contaminated with solids

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Publication number Priority date Publication date Assignee Title
DE2657525C3 (de) * 1976-12-18 1981-02-12 Teldix Gmbh, 6900 Heidelberg Vorrichtung zum Überwachen des abgezogenen Fadens eines OE-Spinnrotors
US4339719A (en) * 1980-07-30 1982-07-13 Electric Power Research Institute, Inc. Conductivity sensor for monitoring corrodents being deposited in a steam turbine
US4335600A (en) * 1980-11-13 1982-06-22 General Electric Company Detecting internal abnormalities in turbines
US4588885A (en) * 1984-02-07 1986-05-13 International Technical Associates Method of and apparatus for the removal of paint and the like from a substrate
US4548040A (en) * 1984-05-11 1985-10-22 Elliott Turbomachinery Company, Inc. Method and apparatus for determining when to initiate cleaning of turbocharger turbine blades
US5365663A (en) * 1992-04-28 1994-11-22 Westinghouse Electric Corporation Method of attaching a monitor target to a shrouded blade
US5507306A (en) * 1993-12-23 1996-04-16 Howmet Corporation Cleaning apparatus and method for cleaning internal airfoil cooling passages
US5696324A (en) * 1995-05-11 1997-12-09 Iwatsu Electric Co., Ltd. Method and apparatus for predicting the life of an object to be measured using longitudinal waves
US5986234A (en) * 1997-03-28 1999-11-16 The Regents Of The University Of California High removal rate laser-based coating removal system
DE19801804C2 (de) * 1998-01-19 1999-10-28 Siemens Ag Turbinenschaufel sowie Verfahren zur Inspektion und/oder Reinigung einer Turbinenschaufel
US6668655B2 (en) * 2001-09-27 2003-12-30 Siemens Westinghouse Power Corporation Acoustic monitoring of foreign objects in combustion turbines during operation
US6794602B2 (en) * 2001-10-18 2004-09-21 General Electric Company Method and apparatus for cleaning generator and turbine components
RU2324171C2 (ru) * 2003-07-18 2008-05-10 Роузмаунт Инк. Диагностика процесса

Non-Patent Citations (1)

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Title
See references of WO2005085602A1 *

Also Published As

Publication number Publication date
EP1574674A1 (fr) 2005-09-14
DE502005000794D1 (de) 2007-07-12
JP2007526421A (ja) 2007-09-13
US20070194773A1 (en) 2007-08-23
EP1725743B1 (fr) 2007-05-30
WO2005085602A1 (fr) 2005-09-15
JP4474459B2 (ja) 2010-06-02
ES2284155T3 (es) 2007-11-01
CN100404797C (zh) 2008-07-23
CN1926309A (zh) 2007-03-07

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