Repair of shaft and ventilation ring vanes damages of the generator of the hydroelectric generating set at the hydro power plant
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Hydro power plant ’Pirot’, which was built in 1990, is
an accumulation-derivative power plant, which consists of 2
above-ground vertical hydroelectric generating sets that contain
Francis turbines with nominal power of 41,5 MW, manufactured
in Czech Republic, a tunnel and a sunken pipeline with overall
length of 2.030 m and diameter that ranges from 3.000 to
3.500 mm. Pipeline, made of 22 mm thick pipes, has been
designed and built without anchor blocks at curvatures, which is
a rarity elsewhere. Maximum pressure of 2.5 MPa occurs in front
of the turbine cover. This paper contains the analysis of the state
of the generator shaft on which the mechanical damages were detected, as well as the analysis of the state of vanes of the upper
and lower ventilation ring designed for air cooling of the
generator rotor where corrosion, erosion and, most of all,
cavitation damages were detected, based on results of nondestructive
testing (visual testing, penetrant testing, ultrasonic
...testing). Procedures for the rehabilitation of damaged
components without disassembling them were defined. The
execution of these procedures helped in saving approximately
100.000 €. Taking into account the period of time necessary to
perform complete disassembling of components, as well as the
period of time needed to perform reassembling, which is directly
linked with the amount of energy the hydroelectric generating set
A2 would produce during that period, the overall save would
mount up to approximately 500.000 €.
Кључне речи:
hydroelectric generating set / turbine shaft / ventilator ring vane / damage repairИзвор:
Međunarodno Savetovanje Energetika 2020, Energija (Energija, ekonomija, ekologija),, 2020, 360-363Издавач:
- Savez energetičara
Финансирање / пројекти:
- Одрживост и унапређење машинских система у енергетици и транспорту применом форензичког инжењерства, еко и робуст дизајна (RS-MESTD-Technological Development (TD or TR)-35006)
Институција/група
Institut za ispitivanje materijalaTY - CONF AU - Arsić, Miodrag AU - Grabulov, Vencislav AU - Mladenović, Mladen AU - Bulatović, Srđan AU - Savić, Zoran PY - 2020 UR - http://rims.institutims.rs/handle/123456789/871 AB - Hydro power plant ’Pirot’, which was built in 1990, is an accumulation-derivative power plant, which consists of 2 above-ground vertical hydroelectric generating sets that contain Francis turbines with nominal power of 41,5 MW, manufactured in Czech Republic, a tunnel and a sunken pipeline with overall length of 2.030 m and diameter that ranges from 3.000 to 3.500 mm. Pipeline, made of 22 mm thick pipes, has been designed and built without anchor blocks at curvatures, which is a rarity elsewhere. Maximum pressure of 2.5 MPa occurs in front of the turbine cover. This paper contains the analysis of the state of the generator shaft on which the mechanical damages were detected, as well as the analysis of the state of vanes of the upper and lower ventilation ring designed for air cooling of the generator rotor where corrosion, erosion and, most of all, cavitation damages were detected, based on results of nondestructive testing (visual testing, penetrant testing, ultrasonic testing). Procedures for the rehabilitation of damaged components without disassembling them were defined. The execution of these procedures helped in saving approximately 100.000 €. Taking into account the period of time necessary to perform complete disassembling of components, as well as the period of time needed to perform reassembling, which is directly linked with the amount of energy the hydroelectric generating set A2 would produce during that period, the overall save would mount up to approximately 500.000 €. PB - Savez energetičara C3 - Međunarodno Savetovanje Energetika 2020, Energija (Energija, ekonomija, ekologija), T1 - Repair of shaft and ventilation ring vanes damages of the generator of the hydroelectric generating set at the hydro power plant EP - 363 SP - 360 UR - https://hdl.handle.net/21.15107/rcub_rims_871 ER -
@conference{ author = "Arsić, Miodrag and Grabulov, Vencislav and Mladenović, Mladen and Bulatović, Srđan and Savić, Zoran", year = "2020", abstract = "Hydro power plant ’Pirot’, which was built in 1990, is an accumulation-derivative power plant, which consists of 2 above-ground vertical hydroelectric generating sets that contain Francis turbines with nominal power of 41,5 MW, manufactured in Czech Republic, a tunnel and a sunken pipeline with overall length of 2.030 m and diameter that ranges from 3.000 to 3.500 mm. Pipeline, made of 22 mm thick pipes, has been designed and built without anchor blocks at curvatures, which is a rarity elsewhere. Maximum pressure of 2.5 MPa occurs in front of the turbine cover. This paper contains the analysis of the state of the generator shaft on which the mechanical damages were detected, as well as the analysis of the state of vanes of the upper and lower ventilation ring designed for air cooling of the generator rotor where corrosion, erosion and, most of all, cavitation damages were detected, based on results of nondestructive testing (visual testing, penetrant testing, ultrasonic testing). Procedures for the rehabilitation of damaged components without disassembling them were defined. The execution of these procedures helped in saving approximately 100.000 €. Taking into account the period of time necessary to perform complete disassembling of components, as well as the period of time needed to perform reassembling, which is directly linked with the amount of energy the hydroelectric generating set A2 would produce during that period, the overall save would mount up to approximately 500.000 €.", publisher = "Savez energetičara", journal = "Međunarodno Savetovanje Energetika 2020, Energija (Energija, ekonomija, ekologija),", title = "Repair of shaft and ventilation ring vanes damages of the generator of the hydroelectric generating set at the hydro power plant", pages = "363-360", url = "https://hdl.handle.net/21.15107/rcub_rims_871" }
Arsić, M., Grabulov, V., Mladenović, M., Bulatović, S.,& Savić, Z.. (2020). Repair of shaft and ventilation ring vanes damages of the generator of the hydroelectric generating set at the hydro power plant. in Međunarodno Savetovanje Energetika 2020, Energija (Energija, ekonomija, ekologija), Savez energetičara., 360-363. https://hdl.handle.net/21.15107/rcub_rims_871
Arsić M, Grabulov V, Mladenović M, Bulatović S, Savić Z. Repair of shaft and ventilation ring vanes damages of the generator of the hydroelectric generating set at the hydro power plant. in Međunarodno Savetovanje Energetika 2020, Energija (Energija, ekonomija, ekologija),. 2020;:360-363. https://hdl.handle.net/21.15107/rcub_rims_871 .
Arsić, Miodrag, Grabulov, Vencislav, Mladenović, Mladen, Bulatović, Srđan, Savić, Zoran, "Repair of shaft and ventilation ring vanes damages of the generator of the hydroelectric generating set at the hydro power plant" in Međunarodno Savetovanje Energetika 2020, Energija (Energija, ekonomija, ekologija), (2020):360-363, https://hdl.handle.net/21.15107/rcub_rims_871 .