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Shanghai Steam Turbine, N125-135/535/535, 1989, 125MW, Coal Fired Steam Turbine Generation Set

Description

  1. Overview
    1. Two units started operation in 1989 and 1990; stopped operation in 2007.
    2. In December 2002 and May 2004, the DCS and DEH systems were upgraded to improve efficiency.
    3. Two sets of 420 ton/hr boilers are not for sale and would be retained by the seller.
    4. Model: N125-135/535/535.
    5. Super high pressure, middle re-heat, twin cylinder, twin exhaust, condensation type.
  2. Specifications
    1. Rated power: 125 kW.
    2. Speed: 3000 rpm.
    3. Main steam pressure: 135 kg/cm², max. 140 kg/cm², min. 130 kg/cm².
    4. Main steam temperature: normal 535 °C, max. 555 °C, min. 520 °C.
    5. High pressure cylinder exhaust pressure at rated working condition: 26 kg/cm².
    6. High pressure cylinder exhaust temperature at rated working condition: 319.5 °C.
    7. Cooling water temperature: normal 20 °C, max. 33 °C.
    8. Exhaust steam pressure: 0.05 kg/cm².
    9. Reheat steam extraction stages low temperature re-heater: 4.
    10. High pressure re-heater: 2.
    11. De-oxygenator: 1 unit.
    12. Boiler feed water temperature at working condition: 239.5 °C.
    13. Max vibration allowed under working speed: 0.05 mm.
    14. Weight: approx. 320 ton.
    15. Dimension: 13500 x 7400 x 5400 mm.
    16. End blade dimension: D2035/L700 mm.
    17. Lub oil pressure: 0.8 to 1.5.
    18. Speed regulator oil pressure: 12.
    19. At oil pressure meter 12, main oil pump oil flow: 4.5 m³/min.
    20. Oil tank volume: 23 or 20 m³.
    21. Oil cooler: 3 sets, model: YL-80-II or YL-0-I.
    22. Cooling surface: 8.0 60 m².
    23. Cooling capacity: 250 150 ton/hr.
    24. Water side resistance: 1700 mm (at water flow of 250 ton/hr).
    25. 1.0 m (at water flow of 150 ton/hr).
    26. Cooling surface: 7100 m².
    27. Weight without water: 135 ton.
    28. Operation weight: 230 ton.
    29. Cooling capacity: 18100 ton/hr.
    30. Water resistance: 5200 mm water.
    31. Max working pressure at water chamber: 1.5 kg/cm².
    32. Jet water steam extractor, model: CS-480-25-3.
    33. Working pressure: 3.6, water temperature: 20.
    34. Water consumption: 480 ton/hr.
    35. Steam re-heater, model: JC-26-1.
    36. Re-heater water flow: 120 ton/hr.
    37. Re-heater surface area: 26 °C.
    38. Pipe internal water flow: 12500 mm/sec.
  3. Generator Specifications
    1. Twin water cooled generator.
    2. Rated power: 147 kVA, p.f.: 0.85.
    3. Voltage: 13800 V, speed: 3000 rpm.
    4. Current: 6150 A.
    5. Efficiency: 98.35%.
  4. Condition
    1. Still installed.
  5. Extraction Stage Data
    1. Stage 1: rated pressure 37, temperature 362.5 °C, steam extraction 17599 kg/hr.
    2. Stage 2: rated pressure 26, temperature 319.5 °C, steam extraction 41735 kg/hr.
    3. Stage 3: rated pressure 7.83, temperature 386 °C, steam extraction 7391 kg/hr.
    4. Stage 4: rated pressure 4.67, temperature 321.2 °C, steam extraction 12906 kg/hr.
    5. Stage 5: rated pressure 2.5, temperature 251 °C, steam extraction 20130 kg/hr.
    6. Stage 6: rated pressure 0.756, temperature 137.2 °C, steam extraction 15392 kg/hr.
    7. Stage 7: rated pressure 0.158, temperature 54.6 °C, steam extraction 888 kg/hr.