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The possibility of application the acoustic emission method for monitoring flow of water within a ball valve

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EN
Abstrakty
EN
Acoustic emission method (AE) can be used for the diagnosis of machine parts or apparatus such as, for example, ball valves. This paper presents the methodology and research results of ball valve in fresh water systems. The opening angle of the valve was changed during the research. The flow of water was measured by a magnetically inductive flowmeter. The research was carried out on a laboratory test stand using an acoustic emission set made by Vallen Inc. This set included: 4 channel signal recorder AMSY 6, two measurement modules ASIP-2/S, preamplifier with a frequency range 20 kHz – 1 MHz and the strengthening of 34 dB and AE signal measurement sensor type VS 150M, with a frequency range 100 – 450kHz. The obtained from the AE-System made by Vallen were compared with the results of the AE-System made by Physical Acoustics (PAC). The PAC system includes preamplifier USB AE Node, type 1283 with bandpass 20 kHz – 1 MHz, AE-Sensor R6D, computer with AE Win for USB Version E5.32 software. During the study, the acoustic emission (AE) generated by flowing water was recorded. The following parameters were determined: amplitude, number of events – hits, the effective value of the signal (RMS). Analysis of the results showed that within a specific range of opening angle of the valve the value of the generated acoustic emission in flowing water increases. This is probably associated with the occurrence of cavitation within the valve. This is an undesirable phenomenon and that these opening angles of ball valve should be avoided in the normal operation.
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autor
  • Gdynia Maritime University, Faculty of Marine Engineering Morska Street 81-87, 81-225 Gdynia, Poland Tel.:+48 58 690 15 49, fax: +4858 6901399
autor
  • Technische Hochschule Mittelhessen, University of Applied Sciences Department of Mechanical Engineering and Energy Systems Wiesenstraße 14, 35390 Gießen, Germany
Bibliografia
  • [1] Baran, I., Identyfikacja uszkodzeń korozyjnych zbiorników na paliwa płynne metodą emisji akustycznej, Rozprawa doktorska, Krakow 2013.
  • [2] Baran, I., Nowak, M., Schmidt, J., Ono, K., Potentials of AE application in testing industrial pipelines, Advances in Acoustic Emission, USA 2007.
  • [3] Dudzik, K., The possibility of application acoustic emission method to optimize determination of finish lathing parameters, Journal of KONES, Vol. 22, No. 4, pp. 79-85, Warsaw 2015.
  • [4] Malecki, I., Ranachowski, J., Emisja Akustyczna, źródła, metody, zastosowania, Pascal Publications, Warszawa 1994.
  • [5] Vallen Systeme, AMSY-6 Handbook, System description, Germany 2010.
  • [6] Ziegler, B., Miszczak, A., Acoustic emission as a friction force indicator after test stands experiments, Journal of KONES, Warszawa 2007.
  • [7] Ziegler, B., Contribution of acoustic emission into optimal bearing lubrication, Journal of KONES, Warsaw 2007.
  • [8] Ziegler, B., An application of acoustic emission methods in diagnostic of centrifugal pumps, Master Thesis, Gdynia 2008.
  • [9] Ziegler, B., Zastosowanie emisji akustycznej do identyfikacji warunków smarowania łożysk ślizgowych, Rozprawa doktorska, Koszalin 2010.
  • [10] Ziegler, B., Bestimmung der Betriebsbedingungen saugseitig gedrosselter Kreiselpumpen mittels Schallemissionsanalyse, 18. Kolloquium Schallemission, Wetzlar, Germany 2011.
Uwagi
PL
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.
Typ dokumentu
Bibliografia
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bwmeta1.element.baztech-2c4623d7-c0c8-4c6f-89b4-41813d75d07e
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