IN2015DN02617A - - Google Patents

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Publication number
IN2015DN02617A
IN2015DN02617A IN2617DEN2015A IN2015DN02617A IN 2015DN02617 A IN2015DN02617 A IN 2015DN02617A IN 2617DEN2015 A IN2617DEN2015 A IN 2617DEN2015A IN 2015DN02617 A IN2015DN02617 A IN 2015DN02617A
Authority
IN
India
Prior art keywords
blade
turbine
frequency
positional
values
Prior art date
Application number
Inventor
Sebastian; Jakielski
Stefan; Obermayr
Original Assignee
Siemens Ag
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 filed Critical Siemens Ag
Publication of IN2015DN02617A publication Critical patent/IN2015DN02617A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/023—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance where the material is placed in the field of a coil
    • G01N27/025—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance where the material is placed in the field of a coil a current being generated within the material by induction
    • 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
    • F01D21/003—Arrangements for testing or measuring
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
    • G01H1/003—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines
    • G01H1/006—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines of the rotor of turbo machines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/60—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrostatic variables, e.g. electrographic flaw testing
    • G01N27/61—Investigating the presence of flaws
    • 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
    • F05D2260/00—Function
    • F05D2260/80—Diagnostics
    • 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
    • F05D2270/80—Devices generating input signals, e.g. transducers, sensors, cameras or strain gauges
    • F05D2270/821—Displacement measuring means, e.g. inductive

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

The invention relates to a measurement method (11) for early detection of damage to a blade (26) of an impeller of a turbine (10). According to the invention , during operation of the turbine (10), in a rotational direction (17) of the blade (26) along a circumference (24) which surrounds the impeller , at a plurality of points, in each case a plurality of magnetic fields are generated next to one another substantially in an oscillation direction (18) of the blade (26), which magnetic fields are influenced by a tip (15) of a turbine blade (14) of the blade (26) during transit. Positional values (19) of the tip (15) are detected (32) by way of the influencing at the plurality of points. A positional profile (20) of the turbine blade (14) is then formed (33) from the positional values (19) and a frequency (22) is determined (34) from the positional profile (20). Said frequency (22) is compared (35) with defined frequency values. An alarm event (23) is recognized (36) in the case of a sudden and/or pronounced change in the frequency (22). In addition , a turbine (10) is claimed which is configured to carry out the measurement method (11) according to the invention.
IN2617DEN2015 2012-10-31 2013-10-01 IN2015DN02617A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP12190744.8A EP2728128A1 (en) 2012-10-31 2012-10-31 Measuring method for detecting damage to a turbine blade and turbine
PCT/EP2013/070433 WO2014067737A1 (en) 2012-10-31 2013-10-01 Measurement method for detecting damage to a turbine blade and turbine

Publications (1)

Publication Number Publication Date
IN2015DN02617A true IN2015DN02617A (en) 2015-09-18

Family

ID=47172435

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2617DEN2015 IN2015DN02617A (en) 2012-10-31 2013-10-01

Country Status (7)

Country Link
US (1) US9804110B2 (en)
EP (2) EP2728128A1 (en)
JP (1) JP5940743B2 (en)
KR (1) KR20150060937A (en)
CN (1) CN104755706B (en)
IN (1) IN2015DN02617A (en)
WO (1) WO2014067737A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2977316B1 (en) * 2011-07-01 2014-02-21 Snecma DEVICE AND METHOD FOR MEASURING THE TIME OF PASSING AUBES INTO A TURBOMACHINE
EP3296513B1 (en) 2016-09-16 2020-08-19 Ratier-Figeac SAS Propeller health monitoring
DE102016219171A1 (en) * 2016-10-04 2018-04-05 Siemens Aktiengesellschaft Method for non-destructive material testing
KR101999432B1 (en) 2017-04-04 2019-07-11 두산중공업 주식회사 System and Method for Magnetic Field to Flutter Measurement of A Turbine Blade
CN110702217B (en) * 2019-11-15 2021-07-27 日本电产科宝(浙江)有限公司 Noise detection device
US11378511B2 (en) * 2019-11-21 2022-07-05 Applied Materials, Inc. Methods and apparatus for detecting corrosion of conductive objects
EP4055254A1 (en) * 2019-12-05 2022-09-14 Siemens Energy, Inc. Turbine blade health monitoring system for identifying cracks
CN114002061B (en) * 2021-10-21 2024-02-20 山东鑫海矿业技术装备股份有限公司 Impeller monitoring method, equipment and medium of vortex breaker based on radial force

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3654803A (en) 1970-10-02 1972-04-11 Raymond A Robinson System for measuring rotor blade vibration
US4934192A (en) 1988-07-11 1990-06-19 Westinghouse Electric Corp. Turbine blade vibration detection system
US4951500A (en) * 1989-07-26 1990-08-28 Westinghouse Electric Corp. Method for determining the untwist of turbine blades
US5206816A (en) * 1991-01-30 1993-04-27 Westinghouse Electric Corp. System and method for monitoring synchronous blade vibration
JP2941613B2 (en) 1993-08-23 1999-08-25 三菱重工業株式会社 Rotor blade vibration measurement device
JPH1068654A (en) 1996-08-27 1998-03-10 Mitsubishi Heavy Ind Ltd Measuring device of vibration of rotor
US7023205B1 (en) * 2000-08-01 2006-04-04 General Dynamics Advanced Information Systems, Inc. Eddy current sensor capable of sensing through a conductive barrier
EP1394360A1 (en) 2002-08-23 2004-03-03 Siemens Aktiengesellschaft Nondestructive method for testing a component as well as method to produce a gas turbine blade
US7392713B2 (en) * 2002-09-30 2008-07-01 United Technologies Corporation Monitoring system for turbomachinery
ES2307989T3 (en) 2002-11-06 2008-12-01 Siemens Aktiengesellschaft TURBOMACHINE.
GB2408802A (en) * 2003-12-03 2005-06-08 Weston Aerospace Eddy current sensors
US20050122095A1 (en) * 2003-12-05 2005-06-09 Dooley Kevin A. Rotation sensor and method
US7341428B2 (en) * 2005-02-02 2008-03-11 Siemens Power Generation, Inc. Turbine blade for monitoring torsional blade vibration
US7836772B2 (en) * 2007-09-26 2010-11-23 Siemens Energy, Inc. Method and apparatus for tracking a rotating blade tip for blade vibration monitor measurements
US7866213B2 (en) * 2008-06-18 2011-01-11 Siemens Energy, Inc. Method of analyzing non-synchronous vibrations using a dispersed array multi-probe machine
DE112009002010T5 (en) 2008-08-29 2012-06-21 General Electric Company System and method for detecting the periodic position of an object
US8018225B2 (en) * 2008-11-25 2011-09-13 General Electric Company System and method for sensing the periodic position of an object
DE102008057556A1 (en) 2008-11-15 2010-05-20 Mtu Aero Engines Gmbh Method and device for crack detection on compressor blades
GB201004559D0 (en) * 2010-03-19 2010-05-05 Rolls Royce Plc Rotating blade analysis
EP2299248A1 (en) 2009-09-14 2011-03-23 Siemens Aktiengesellschaft Method for detecting cracks in turbine blades
CZ303476B6 (en) * 2009-10-15 2012-10-10 Štarman@Stanislav Method of contactless monitoring of turbines, especially individual blades of steam or gas turbine in power plants and system for making the same
US8664585B2 (en) 2010-11-15 2014-03-04 Siemens Energy, Inc. Sensor apparatus for detecting and monitoring a crack propagating through a structure

Also Published As

Publication number Publication date
EP2728128A1 (en) 2014-05-07
WO2014067737A1 (en) 2014-05-08
US9804110B2 (en) 2017-10-31
JP5940743B2 (en) 2016-06-29
KR20150060937A (en) 2015-06-03
EP2885510B1 (en) 2016-09-28
CN104755706B (en) 2016-06-15
JP2015533991A (en) 2015-11-26
US20150285753A1 (en) 2015-10-08
CN104755706A (en) 2015-07-01
EP2885510A1 (en) 2015-06-24

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