The results of the development of a new ceramic-metal composite material for seals of the steam path of steam turbines are presented. The concept of the new material and a model of its performance when rubbing against blade fins are developed. Data on its structure, physical and mechanical properties, and pilot operation as part of shroud seals of an experimental steam turbine, as well as commercial turbines of different capacity, are presented.
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References
Technical Guide RTM 108.020.33–86. Labyrinth Seals of Stationary Steam and Gas Turbines and Compressors [in Russian], Izd. TsKTI, Leningrad (1986).
V. A. Mel’nik, “Complementary products and devices. Classification of contactless slit seals,” Chem. Petrol. Eng., 45(3–4), 152 – 160 (2009).
B. Qiu, J. Li, and X. Yan, “Investigation into the flow behavior of multi-stage rush seals,” J. Power and Energy, 228(4), 416 – 428 (2014).
A. O. Pugachev and P. Helm, “Calibration of porous medium models for brush seals,” J. Power and Energy, 223(1), 83 – 91 (2009).
E. V. Ur’ev and S. V. Zhukov, “Use of honeycomb seals in steam turbines,” Power Technol. Eng., 42(6), 339 – 343 (2008).
A. S. Lisyanskii, V. E. Eribin, Yu. A. Sakhnin, O. V. Fatkov, K. V. Gorlitsyn, and S. V. Ushinin, “Practical experience with the introduction of honeycomb shroud seals on 250 – 800 MW supercritical pressure units,” Power Technol. Eng., 47(6), 440 – 445 (2014).
A. M. Sakharov, V. K. Konovalov, and S. V. Ushinin, “Results of commercial introduction of honeycomb shroud seals on 300 MW turbine units,” Power Technol. Eng., 44(2), 153 – 158 (2010).
X. Zheng, G. Lu, M. D. Mack, D. Trivedi, N. Sarawate, and C.Wolfe, Manufacture and Testing of Variable Bristle Diameter Brush Seals. Paper 2013-3859, AIAA (2013).
D. Trivedi, B. Roy, M. Demiroglu, and X. Zheng, “Experimental characterization of variable bristle diameter brush seal leakage, stiffness and wear. GT 2013-95086,” in: ASME Turbo Expo 2013, San Antonio, Texas, USA (2013).
US Pat. No. 8051563, W. E. Adis, B. A. Couture, M. G. Jones, M. D. Mack, and D. F. Purdy, Systems and Methods and Apparatus Involving Fabricating Brush Seals (2009).
R. Bidkar, X. Zheng, M. Demiroglu, and N. Turnquist, “Stiffness measurement for pressure loaded brush seals. GT 2011-45399,” in: ASME Turbo Expo 2011, Vancouver, Canada (2011).
Yu. V. Rublevskii and V. N. Dotsenko, “Experience of using brush seals for improving the parameters of aircraft gas-turbine engines and stationary power units,” Énerg. Teplotekhn. Prots. Ustanov., No. 8, 45 – 49 (2012).
A. V. Eropyanov, N. N. Sitov, and M. N. Zhukov, Powder Materials [in Russian], VShTÉ SPbGUPTD, St. Petersburg, Russia. (2017).
P. Sutor, “Solid lubricants: overview and recent developments,” MRS Bull., No. 16, 24 – 30 (1991).
F. J. Clauss, “Low-friction inorganic solids,” in: Solid Lubricants and Self-Lubricating Solids, Elsevier (1972), pp. 15 – 41.
J. Lancaster, “Solid lubricants,” in: CRC Handb. Lubr., CRC Press (1988), pp. 269 – 290.
E. L. McMurtrey, Lubrication Handbook for the Space Industry. Part A, Solid Lubricants, NASA (1985).
H. E. Sliney, “Solid lubricant materials for high temperatures. A review,” Tribology, Int. 15, 303 – 315 (1982).
N. Kostoglou, K. Polychronopoulou, and C. Rebholz, “Thermal and chemical stability of hexagonal boron nitride (h-BN) nanoplatelets,” Vacuum, No. 112, 42 – 45 (2015).
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Translated from Élektricheskie Stantsii, No. 5, May 2020, pp. 25 – 30.
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Bol’shakov, B.O., Galiakbarov, R.F., Smyslov, A.M. et al. Metal-Ceramic Composite Material for Shroud Seals in the Steam Path of Steam Turbines. Power Technol Eng 54, 532–536 (2020). https://doi.org/10.1007/s10749-020-01246-3
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DOI: https://doi.org/10.1007/s10749-020-01246-3