WO2005085602A1 - Verfahren und vorrichtung zur detektierung von verunreinigungen an turbinenbauteilen - Google Patents
Verfahren und vorrichtung zur detektierung von verunreinigungen an turbinenbauteilen Download PDFInfo
- Publication number
- WO2005085602A1 WO2005085602A1 PCT/EP2005/050881 EP2005050881W WO2005085602A1 WO 2005085602 A1 WO2005085602 A1 WO 2005085602A1 EP 2005050881 W EP2005050881 W EP 2005050881W WO 2005085602 A1 WO2005085602 A1 WO 2005085602A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- turbine
- vibration
- characteristic value
- component
- components
- Prior art date
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
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/591,511 US20070194773A1 (en) | 2004-03-03 | 2005-03-01 | Method and device for detecting contaminants on turbine components |
EP05716854A EP1725743B1 (de) | 2004-03-03 | 2005-03-01 | Verfahren und vorrichtung zur detektierung von verunreinigungen an turbinenbauteilen |
DE502005000794T DE502005000794D1 (de) | 2004-03-03 | 2005-03-01 | Verfahren und vorrichtung zur detektierung von verunreinigungen an turbinenbauteilen |
JP2007501279A JP4474459B2 (ja) | 2004-03-03 | 2005-03-01 | タービンのタービン部品の汚れを検出する方法とその装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04004981.9 | 2004-03-03 | ||
EP04004981A EP1574674A1 (de) | 2004-03-03 | 2004-03-03 | Verfahren und Vorrichtung zur Detektierung von Verunreinigungen an Turbinenbauteilen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005085602A1 true WO2005085602A1 (de) | 2005-09-15 |
Family
ID=34814246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/050881 WO2005085602A1 (de) | 2004-03-03 | 2005-03-01 | Verfahren und vorrichtung zur detektierung von verunreinigungen an turbinenbauteilen |
Country Status (7)
Country | Link |
---|---|
US (1) | US20070194773A1 (de) |
EP (2) | EP1574674A1 (de) |
JP (1) | JP4474459B2 (de) |
CN (1) | CN100404797C (de) |
DE (1) | DE502005000794D1 (de) |
ES (1) | ES2284155T3 (de) |
WO (1) | WO2005085602A1 (de) |
Families Citing this family (4)
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 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
DE19801804A1 (de) * | 1998-01-19 | 1999-07-22 | Siemens Ag | Turbinenschaufel sowie Verfahren zur Inspektion und/oder Reinigung einer Turbinenschaufel |
US20030085203A1 (en) * | 2001-10-18 | 2003-05-08 | Nair N. Kutty | Method and apparatus for cleaning generator and turbine components |
Family Cites Families (10)
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 |
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 |
US6668655B2 (en) * | 2001-09-27 | 2003-12-30 | Siemens Westinghouse Power Corporation | Acoustic monitoring of foreign objects in combustion turbines during operation |
EP1646864B1 (de) * | 2003-07-18 | 2018-11-07 | Rosemount Inc. | Prozessdiagnostik |
-
2004
- 2004-03-03 EP EP04004981A patent/EP1574674A1/de not_active Withdrawn
-
2005
- 2005-03-01 DE DE502005000794T patent/DE502005000794D1/de active Active
- 2005-03-01 US US10/591,511 patent/US20070194773A1/en not_active Abandoned
- 2005-03-01 EP EP05716854A patent/EP1725743B1/de not_active Not-in-force
- 2005-03-01 WO PCT/EP2005/050881 patent/WO2005085602A1/de active IP Right Grant
- 2005-03-01 JP JP2007501279A patent/JP4474459B2/ja not_active Expired - Fee Related
- 2005-03-01 ES ES05716854T patent/ES2284155T3/es active Active
- 2005-03-01 CN CNB2005800063955A patent/CN100404797C/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
DE19801804A1 (de) * | 1998-01-19 | 1999-07-22 | Siemens Ag | Turbinenschaufel sowie Verfahren zur Inspektion und/oder Reinigung einer Turbinenschaufel |
US20030085203A1 (en) * | 2001-10-18 | 2003-05-08 | Nair N. Kutty | Method and apparatus for cleaning generator and turbine components |
Also Published As
Publication number | Publication date |
---|---|
US20070194773A1 (en) | 2007-08-23 |
EP1574674A1 (de) | 2005-09-14 |
CN100404797C (zh) | 2008-07-23 |
JP2007526421A (ja) | 2007-09-13 |
ES2284155T3 (es) | 2007-11-01 |
EP1725743B1 (de) | 2007-05-30 |
EP1725743A1 (de) | 2006-11-29 |
DE502005000794D1 (de) | 2007-07-12 |
CN1926309A (zh) | 2007-03-07 |
JP4474459B2 (ja) | 2010-06-02 |
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