Modernization and comprehensive reconstruction of hydraulic units that have exhausted their design service life are among the most important directions in the development of hydraulic power engineering over the next 10 – 20 years. Assessment of the remaining service life of the hydraulic unit as a whole and of individual assemblies that do not have to be replaced is of importance for arriving at a management decision on the need to replace elements and create a list of individual assemblies that do not have to be replaced. The existing industry regulatory base does not define the issues related to prediction of changes in technical state and individual assessment of the remaining service life of a hydraulic unit that has exhausted a lengthy service life under the conditions of actual operation in a hydroelectric power plant. This prevents us from standardizing the process of evaluating the strength and life of equipment following modernization of a unit of equipment or partial replacement of its assemblies and elements.
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References
Russia State Standard GOST R 55260.3.2–2013. Hydroelectric Power Stations. Part 3-2. Hydraulic Turbines. Techniques of Estimating Technical State [in Russian].
STO 17330282.27.140.001–2006. Techniques of Estimating the Technical State of the Basic Equipment of Hydroelectric Power Stations (taking into account changes and extensions Approved by JSC RusHydro and Order No. 447 / 1p-66 of JSC GidroOGK June 7, 2010, and Order 121 of JSC RusHydro, Feb. 17, 2015) [in Russian].
STO RusGidro 02.03.107–2013. Hydroelectric Power Stations. Nondestructive Testing of the Mounting Elements of Critical Assemblies of Hydraulic Units. Procedural Specifications [in Russian].
STO RusGidro 02.03.93–2013. Hydraulic Turbines. Monitoring the Metal of the Blades and Chambers of Rotor Wheels. Procedural Specifications [in Russian].
STO RusGidro 02.03.130–2015. Hydroelectric Power Stations. Technical Inspection of Buildings, Structures, Basic and Auxiliary Equipment, and Technological Systems. Standards and Requirements [in Russian].
STO RusGidro 02.03.77–2015. Hydroelectric Power Stations. Prolonging the Service Life of Basic Equipment in the Course of Use. Standards and Requirements [in Russian].
RD 24.122.14–89. Methods of Strength Calculation of the Rotor Wheels of Mixed-Flow Hydraulic Turbines [in Russian].
RD 24.122.15–89. Methods of Fatique Strength Calculation of the Blades of Hydraulic Rotary Blade Turbines [in Russian].
U. Seidel, C. Mende, B. Hübner, W. Weber, and A. Otto, “Dynamic loads in Francis runners and their impact on fatigue life,” IOP Conf. Ser. Earth Environm. Sci., 22(3), 32054 – 32062 (2014); doi: https://doi.org/10.1088/1755-1315/22/3/032054.
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Translated from Gidrotekhnicheskoe Stroitel’stvo, No. 9, September 2019, pp. 14 – 16.
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Georgievskaya, E.V. Assessment of Strength and Useful Life of Hydraulic Units with Partial Replacement of Equipment. Power Technol Eng 53, 641–643 (2020). https://doi.org/10.1007/s10749-020-01130-0
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DOI: https://doi.org/10.1007/s10749-020-01130-0