Diagnostics of steam turbine fluid-flow systems on the basis of vibration spectra

• Autorzy: Gałka T.
• Konferencja: ENERGETYKA 2004 / International Scientific and Technical Conference [3; 2004; Wrocław, Poland]
• Języki publikacji: EN

Abstrakty

EN

Introduction of Condition-Based Maintenance (CBM) in scheduling turbine overhauls imposes new demands on technical condition assessment procedures. Fluid-flow system condition assessment is of particular importance, as this system has substantial contribution into total forced outage time. Vibration characteristics pro-vide an important tool for this purpose. Certain components of vibration spectra contain information on technical condition of individual stages and elements. With a purpose-developed model, condition assessment can be accomplished without turbine disassembly. Statistics and trend analysis are of particular suitability. The following paper present theoretical background and model, as well as a description of several case studies for turbines in Polish utility power plants. Certain failures, detected with vibration-based methods, have been presented and possibilities of wider applications have been outlined.

Słowa kluczowe

EN

steam turbine; fluid-flow system; diagnostic; vibration spectra

PL

turbina parowa; układ przepływowy; diagnostyka; drgania

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Systems : journal of transdisciplinary systems science
• Rocznik: 2004
• Tom: Vol. 9, Sp. 2/1
• Strony: 77--85
• Opis fizyczny: Bibliogr. 9 poz.

Twórcy

autor

Gałka T.

• Instytut Energetyki, Warszawa

Bibliografia

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• [2] Diagnozowanie układów przepływowych cieplnych maszyn wirnikowych na podstawie badań wibracyjnych i analizy procesów zużycia. Report from research project 8 T07B 04020 (unpublished). Institute of Power Engineering, Warsaw, 2003 (in Polish)
• [3] NATKE H.G., CEMPEL C., Model-Aided Diagnosis of Mechanical Systems, Springer-Verlag, Berlin-Heidelberg-New York, 1997
• [4] GALKA T., Zastosowanie modelu procesora energii do określania granicznych poziomów drgań turbozespołów parowych. Energetyka, vol. 1/2000 (547), pp. 21-29 (in Polish)
• [5] GALKA T., Normalisation of Vibration Measurements: Unnecessary Complication or Important Prerequisite?, Proceedings of the Second International Symposium on Stability Control of Rotating Machinery ISCORMA-2, Gdańsk, 2003, pp. 722-731
• [6] ORŁOWSKI Z., Diagnostyka w życiu turbin parowych, WNT, Warszawa, 2001 (in Polish)
• [7] GALKA T., ORŁOWSKI Z., Wektor logistyczny nr diagnozowaniu turbin parowych. Diagnostyka, vol. 25/2001, pp. 49-56 (in Polish)
• [8] GALKA T., Uwzględnienie mocy czynnej turbozespołu w procedurach diagnozowania. Problemy Eksploatacji, vol. 3/2001 (42), pp. 49-56 (in Polish)
• [9] GALKA T., Application of energy processor model for diagnostic symptom limit value determination in steam turbines, Mechanical Systems and Signal Processing, 1999, vol.13, No.5, pp. 757-764