Repair of damaged surfaces at the vital section of the regulatory mechanism of the hydro turbine guide vane apparatus
Апстракт
Vertical Kaplan turbines were installed in 6 hydroelectric generating sets at "Djerdap 1", nominal power 178 MW, that were made in Russia. During the refurbishment of the hydroelectric generating set Al at the hydro power plant Djerdap 1, experimental non-destructive tests on all of its components were performed in order to determine the state of the turbine as a whole. During the testing the damages and cracks were detected on internal surfaces of cranks and sleeves of guide vane apparatus vanes, which were caused by turbine shaft vibrations. Cranks and sleeves were made of cast steel 25L, in accordance with the standard GOST 977. The repair methodology for damaged internal surfaces of cranks of guide vane apparatus vanes is presented in this paper. It was necessary, due to the structural solution used for the design of cranks and sleeves and their function during exploitation, to define a large number of details, carefully reconsider them and carry out all activities with extreme car...e in order to enable the safe operation and continuous use of cranks. Overlooking, underestimation or incorrect perception of important details could cause significant problems during turbine operation.
Кључне речи:
hydro turbine / crank / sleeve / damages / repair tehnologyИзвор:
VIIIth International Metallurgical Congress, 2018, 1-6Издавач:
- Macedonian Union of Metallurgists
Финансирање / пројекти:
Колекције
Институција/група
Mašinski fakultetTY - CONF AU - Arsić, Miodrag AU - Bošnjak, Srđan AU - Grabulov, Vencislav AU - Vistać, Brane AU - Savić, Zoran PY - 2018 UR - https://machinery.mas.bg.ac.rs/handle/123456789/5297 AB - Vertical Kaplan turbines were installed in 6 hydroelectric generating sets at "Djerdap 1", nominal power 178 MW, that were made in Russia. During the refurbishment of the hydroelectric generating set Al at the hydro power plant Djerdap 1, experimental non-destructive tests on all of its components were performed in order to determine the state of the turbine as a whole. During the testing the damages and cracks were detected on internal surfaces of cranks and sleeves of guide vane apparatus vanes, which were caused by turbine shaft vibrations. Cranks and sleeves were made of cast steel 25L, in accordance with the standard GOST 977. The repair methodology for damaged internal surfaces of cranks of guide vane apparatus vanes is presented in this paper. It was necessary, due to the structural solution used for the design of cranks and sleeves and their function during exploitation, to define a large number of details, carefully reconsider them and carry out all activities with extreme care in order to enable the safe operation and continuous use of cranks. Overlooking, underestimation or incorrect perception of important details could cause significant problems during turbine operation. PB - Macedonian Union of Metallurgists C3 - VIIIth International Metallurgical Congress T1 - Repair of damaged surfaces at the vital section of the regulatory mechanism of the hydro turbine guide vane apparatus EP - 6 SP - 1 UR - https://hdl.handle.net/21.15107/rcub_machinery_5297 ER -
@conference{ author = "Arsić, Miodrag and Bošnjak, Srđan and Grabulov, Vencislav and Vistać, Brane and Savić, Zoran", year = "2018", abstract = "Vertical Kaplan turbines were installed in 6 hydroelectric generating sets at "Djerdap 1", nominal power 178 MW, that were made in Russia. During the refurbishment of the hydroelectric generating set Al at the hydro power plant Djerdap 1, experimental non-destructive tests on all of its components were performed in order to determine the state of the turbine as a whole. During the testing the damages and cracks were detected on internal surfaces of cranks and sleeves of guide vane apparatus vanes, which were caused by turbine shaft vibrations. Cranks and sleeves were made of cast steel 25L, in accordance with the standard GOST 977. The repair methodology for damaged internal surfaces of cranks of guide vane apparatus vanes is presented in this paper. It was necessary, due to the structural solution used for the design of cranks and sleeves and their function during exploitation, to define a large number of details, carefully reconsider them and carry out all activities with extreme care in order to enable the safe operation and continuous use of cranks. Overlooking, underestimation or incorrect perception of important details could cause significant problems during turbine operation.", publisher = "Macedonian Union of Metallurgists", journal = "VIIIth International Metallurgical Congress", title = "Repair of damaged surfaces at the vital section of the regulatory mechanism of the hydro turbine guide vane apparatus", pages = "6-1", url = "https://hdl.handle.net/21.15107/rcub_machinery_5297" }
Arsić, M., Bošnjak, S., Grabulov, V., Vistać, B.,& Savić, Z.. (2018). Repair of damaged surfaces at the vital section of the regulatory mechanism of the hydro turbine guide vane apparatus. in VIIIth International Metallurgical Congress Macedonian Union of Metallurgists., 1-6. https://hdl.handle.net/21.15107/rcub_machinery_5297
Arsić M, Bošnjak S, Grabulov V, Vistać B, Savić Z. Repair of damaged surfaces at the vital section of the regulatory mechanism of the hydro turbine guide vane apparatus. in VIIIth International Metallurgical Congress. 2018;:1-6. https://hdl.handle.net/21.15107/rcub_machinery_5297 .
Arsić, Miodrag, Bošnjak, Srđan, Grabulov, Vencislav, Vistać, Brane, Savić, Zoran, "Repair of damaged surfaces at the vital section of the regulatory mechanism of the hydro turbine guide vane apparatus" in VIIIth International Metallurgical Congress (2018):1-6, https://hdl.handle.net/21.15107/rcub_machinery_5297 .