编辑: 阿拉蕾 | 2019-07-06 |
51 MW, 50Hz Gas-Steam Combined Cycle Power Plant in Excellent Condition.
Combined Cycle Power Plant,
51 MW,
50 Hz, Heavy Oil- fired. Owner'
s purchased one set each of PG6471B Gas Turbine Generator andN15-3.43 Steam Turbine Generator . Total operation hours were 30268.1(LFO 29845.5 hours and HFO 422.6 hours) Due to various reasons, owner'
s is planning to sell the complete plant. All equipment is in perfect condition. Appendix I Technical Specification for PG6471B Gas Turbine Generating Set Nanjing Turbine &
Electric Machinery ( Group ) Co., Ltd. 1. Technical Specification for PG6471B Gas Turbine Generating Set Manufacturing The gas turbine generating set is produced under Manufacture Associate Agreement with GE Company of USA. The compressor- turbine rotor, stator vane of compressor, turbine nozzles, combustion system and Speedtronic Mark IV control panel as well as drawings are provided by GE. 2. Structure PG6471B gas turbine generating set is a package unit and can be installed for outdoor operation. It is composed of four blocks i.e. the gas turbine and accessories compartment, control compartment, load gear box enclosure and generator compartment. The control panel of gas turbine, control panel and protection panels of generator, motor control center ( M.C.C. ) are located in the control compartment. Neutral point and outgoing leads cabinet are situated at each sides of the generator compartment. The whole unit is furnished with necessary ventilation, lighting and fire-fighting system. There is air conditioners in the control compartment. 1. Technical Specification. 3.1 Base load ( ISO condition ) ( guaranteed value ) Distillate oil HFO Output Heat rate kW kJ/kW.h
36475 11786
35200 12099 Inlet temp. of turbine Exhaust temperature Exhaust gas flow o o C kg/h x10 x3
1104 539
491 1104
529 491 Note: above performance is measured at generator terminals and includes allowances for the effects on shaft driven auxiliaries, and 2.55 in H2O ( 6.48 mbar ) inlet and 2.52 in H2O ( 6.4 mbar ) exhaust pressure drops. 3.2 Performance correction on the non-ISO conditions. 3.2.1 Altitude correction on curve 416HA662 Rev A. 3.2.2 Ambient temperature correction on curve 544HA876-2 Rev
0 and 544HA875-2Rev 0. 3.2.3 Effect of modulating IGV'
s on exhaust temperature and flow on curve 544HA876-3Rev 0.and 544875-3 Rev.0 3.2.4 Humidity correction on curve 498HA697 Rev B. 3.2.5 Effect on pressure drop. ? Air inlet pressure loss increase every
996 Pa, results an output decrease of 1.50%, and a heat rate increase of 0.50%, exhaust o temperature increase 1.2 C. ? Exhaust pressure loss increase every
996 Pa, results an output decrease of 0.50%, and a heat o rate increase of 0.50%, exhaust temperature increase of 1.2 C. 3.2.6 Noise
93 dB (A) at 1m from each machine 3.4 Generator Type: Output: Voltage: Current: Frequency: Power factor: Speed: Efficiency: Protection type: QFR-36-2
36000 kW
10500 V 2474.4 A
50 Hz 0.8
3000 rpm 97.7% IF
44 Synchronous reactance (saturated): Transient reactance (saturated): Sub-transient reactance (saturated): 247% 22% 14.8% Negative sequence reactance (saturated): Short circuit ratio: Insulation class: Connection: Cooling mode: Cooling temperature _? 0.46 B Y CACW
40 19% Note: The output of generator can be matched with the gas turbine output requirement. Appendix II Scope of Supply for PG6471B Gas Turbine Generating Set (SMD start, simple cycle, axial air inlet, upward exhaust) 1. Gas Turbine Compartments Single shaft gas turbine fitted on a common base with its accessories is built for weatherproof conditions, the enclosure is provided with thermal and acoustical insulation, heating and ventilation. 1.1 1.1.1 1.1.2 1.1.3 Gas turbine Air inlet plenum and ducting of compressor Inlet guide vane ( IGV )