reparatura turbinskog vratila he djerdap ii 2009
TRANSCRIPT
![Page 1: Reparatura turbinskog vratila HE Djerdap II 2009](https://reader033.vdocument.in/reader033/viewer/2022050914/5861a4ba1a28ab0e308bf26f/html5/thumbnails/1.jpg)
Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant-TEROLINK APPHPP Djerdap II – Negotin
Turbine shafts 1985. - 1987. 8 machines from company LMZ, SSSR
1998. - 2000. 2 machines from Romanian company UCM Resica
turbine shaft length 7,55m
turbine power 28MW
turbine shaft diameter 1400mm
paddles diameter 7500mm, 4 paddles
rotation 62,5 o/min
1200
2300
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
turbine base material 20GSL
problem at radius R80
during working period radius area was not checked
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
after 163411 working hours (ca. 24 years) problem occurs at turbine A6 – January 2007.
big oil pressure drop, and then big 2,1m crack reveal at R80 radius
detail examination of R80, reveals big numbers of small cracks
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
Turbine shaft A6
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
Turbine A63 months for
dissembling And 9 months for
assembling
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plantshaft
flange
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
A7
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
Taking the samples (weldability, chemical composition, mechanical properties tests)Together with IMS – February 2009
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
-------max 0,030
max 0,030
1,00 –1,30
0,60 –
0,80
0,16 –0,22
Chemical composition
according to GOST 977-88
--0,038--0,0310,230,220,0010,0021,100,630,12IMS
-0,0240,0380,0080,0090,0470,2730,2700,0210,0190,2870,7250,191Independent house LJIG
%Cu%W%Al%Ti%V%Mo%Cr%Ni%P%S%Mn%Si%C
Chemical composition of base material 20GSL
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power PlantSamples
Weldability test: 2222 XNT vs. EA 395-9 (Russian electrode)
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
Project startsOctober 2009
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
Very narrow space for work
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
Thousand of very small cracks
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power PlantVery important to avoid deformation- comparators,- measuring the temperature
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
TOP quality power source and consumables
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
Grinding +local low temperature preheating
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
Grinding, template estimation
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
Welding starts 2222 Xuper
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
Before the grinding
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
Hardness testing
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
Cracks and radius checking
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
Final facts
the job was done in 24 days, FIRST this kind of job in the world! we worked for ca. 11 ours/day, everything was ok in two weeks will be first check, then after 3 months, and then after one year price of new shaft is between 500.000-1.400.000 eur delivery of one shaft + dismantling time = ca. 1 year there is 7 other turbine shafts, which have to be repair in next one/two years
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Hydro Power Plant
IMS coleagues and Castolin
team
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Prezentacija za mašinski fakultet
Peć za sušenje elektroda.
0-400°C
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Prezentacija za mašinski fakultet
Maska za zavarivanje safilterom
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Prezentacija za mašinski fakultet
Čeone brusilice za završnu obradu.
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Prezentacija za mašinski fakultet
Komperater
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Prezentacija za mašinski fakultet
Plamenici za zagrevanje.
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Prezentacija za mašinski fakultet
Uređaj za predgrevanje i termičku obradu
Snage 50kW
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Prezentacija za mašinski fakultet
Komplet za penetrantsko ispitivanje
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Prezentacija za mašinski fakultet
Dodatni materijalCastolin 2222XuperNucleoTecPrečnici 2,5mm i 3,2mm
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Prezentacija za mašinski fakultet
Izvor struje za REL zavarivanje
XuperMax2250A
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Stronger with…Castolin Eutectic
Sout East Europe Meething, Vienna 2/3. December 2009 Nemanja GostovicAleksandar Djordjevic
Prezentacija za mašinski fakultet
Pneumatski čekić za iskivanje