3X16MW Steam Turbine with Generator Set and Auxiliary Equipment of Coal Power Plant

2.1. Steam turbine specificationManufacturer: Nangjiang Steam Turbine motor FactoryManufacturering Date :2005Model:C12-4.90/0.490-2Rated Power:12MWMax Power :15MWRated Speed:3000 r/minSteam Pressure:Rated Pressure: 4.9 Mpa;Max: 5.1 Mpa;Min 4.61 MpaSteam Temperature:Rated Tem: 470 ºC;Max 480 ºC;Min 455 ºCExhaust Steam Pressure:0.0047 Mpa at Rated Working ConditionSteam Rotary Direction:Clockwise face to head of machineCriticality Speed:1665 r/minPermissional Max Vibration over critical speed::0.15 mmRated Steam turbine bearing permission max vibration:0.05 mmRated Extraction Pressure of Steam turbine:0.8 MpaExtraction Pressurec Changeable Range:0.392 - 0.9 MpaRated Extraction Capacity of Steam Turbine:50 t/hMax Extraction Capacity of Steam Turbine::80 t/hRegenerative Extraction Specification at Rated working condition:unitSecond stageThird stageFouth stageExtraction PressureMpa0.80.1370.0279Extraction TempretureºC30023068Extraction Fluxt/h502.5641.118Regenerative Extraction Specification at Pure Condensation working condition:UnitSecond Stage Third stageFouth StageExtraction PressureMpa0.71410.19030.0665Exteaction TempretureºC27915888.5Extraction Fluxt/h4.9071.1543.766Action Pressure of exhaust cylinder safety valve:0.078 MpaBoiler Feed water temperature:145 ºCSteam Loss of Steam Turbine at Rated Working Condition:6.424 kg/kwh(Guaranteed Value)6.617 kg/kwhThermal Loss of Steam Turbine at Rated Working Condition:7173 KJ/kwh(Guranteed Value) 7388 KJ/kwhSteam Loss at Pure Condensing Working Condition:4.155 kg/kwh(Guranteed Value)4.28 kg/kwhThermal Loss of Steam Turbine at Pure condensing Condition:11213 KJ/kwh(Guranteed Value)11549 KJ/kwhWegith of steam turbine body:58 tIncluding of disconnect plat :15 tRotary unit :7.5 tMax Size of Steam Turbine(LxWxH):6021x3590x3635 mm 3.Auxially Equipments Specificaiton:
1.Steam Seal Heater
Model: JQ - 10/20
Working Steam Pressure : 1.18 - 2.45 Mpa
Working Steam Temperature: 470 ºC
Working Steam Flux: 70 kg/h
Cooling Water Flux: 30 t/h
Cooling water max Pressure: 0.59 Mpa
2.Condeser
Type : Divided into two-way surface type
Cooling Area: 1000 m
Cooling Water: 2835 t/h
Max permicision pressure in water room: 0.35 Mpa
Water Resistor: 26.5 Kpa
Weight without water: 23 t
3.Cooling oil unit
Model: YL - 40
Cooling area: 40 m
Oil flux: 800 L/min
Cooling watwe flux: 117.5 t/h
Water resistance: 11.6 Kpa
Oil resistance: 20 Kpa
4.High Pressure Heater
Exchang heating area: 100 m
Design Steam Pressure: 1.18 Mpa
Design Water Pressure: 8.6 Mpa
5.Low Pressure Heater
Exchange Heating area: 50 m
Design Steam Pressure: 0.118 Mpa
Design Water Pressure: 0.48 Mpa
6.Deaerator
Output : 40 t/h
Working pressure: 0.12 Mpa
Working temperature: 104 ºC
Effective volume of water tank: 20 m
7.Water ejector
Working water flux: 170 m/h
Working water pressure: 0.417 Mpa
Extracting steam flux: 7.9 kg/h
8.Lower temperature redusing pressure unit
P= 5.4 Mpa
P= 0.7 Mpa
t= 485 ºC
t= 250 ºC
Q= 80 t / h
9.Continuous discharge container
Model: PL-3.5-1
Workign Pressure: 0.3 Mpa
Effective volume: 3.5 m
10.Slow bridge double hook crane :
G = 20 / 5 t
H = 14.7 m
S = 16.5 m
Power : 23.4 KW
11.Oil tank
Effective volume: 7.2 m
12.Ejecting water tank:
Effective volume: 3 m
13.Drain water tank
Effective volume: 20 m
14.Cycle water Pump:
Model : 500S-22A
Rated current : 246 A
Rate flux: 1800 m/h
Lift : 17 m
Cavitation allowance: 5 m
rotary speed: 970 r/m
motor model : Y315M-6
motor rated power :132 KW
15.Extinguishing water pump:
Model: IS125-100-250A
Rated current : 102.6 A
Current flux : 172.6 m/h
Lift : 59.5 m
Cavitation allowance: 4.2 m
Spped rotary : 2900 r/m
Motor modle : Y250M-2
Motor rate power : 55 KW
16.Drain water pump
Model : IS65-40-200
Rated current : 15.0 A
Raed flux : 25 m/h
Lift : 50 m
Cavitation allowance : 8 m
Speed rotary : 2900 r/m
Motor model : Y132S2-2
Motor rated power : 7.5 KW
17.High Pressure AC OIL pump
Model : 100Y-120A
Rated Current : 102.6 A
Rated flux : 93 m/h
Lift : 105 m
Cavitation allowance : 4.5 m
Rotary speed : 2950 r/m
Motor model : Y250m-2
Motor rated power : 55 KW
18.DC OIL pump
Model: 2CY-18/3.6
Rated current : 30.5 A
Rated flux : 18 m/h
Output pressure : 0.36 Mpa
Speed rotary : 960 r/m
Motor model: Z2-61
Motor rated power : 5.5 KW
Excitation type : shunt excitation
Excitation pressure : 22.0 V
Excitation Current: 0.805 A
19.Lower Pressure AC oil Pump:
Model : 2CY-18 / 3.6
Rated current : 12.6A
Rated Flux : 18 m/h
Out put : 0.36 Mpa
Rotary speed: 960 r/m
Motor model : Y132M2-6
Motor rated power : 5.5 KW20. 1, 3, 4 ejecting water pump
Motor : IS150-125-400
Rate current: 84.2 A
Rated flux : 200 m/h
Lift : 50 m
Cavitation allowance : 2.8 m
Rotary sppd: 1450 r/m
Motor model : Y225M-4
Motor rated power : 45 KW
21. 2, 5, 6 ejecting water pump
Model : IS100-65-200
Rated current : 42.2 A
Rated flux: 100 m/h
Lift : 50 m
Cavitation allowance: 3.6 m
Rotary speed : 2900 r/m
Motor Model : Y180M-2
Motor power : 22 KW
22.Condensing water pump
Model : 4N6
Rated current : 42.2 A
Rated flux : 40 m/h
Lift : 62 m
Cavitation allowance : 1.6 m
Rotary speed : 2950 r/m
Motor model : Y180M-2
Motor rated power : 22 KW
23. 1, 2, 3, 5 # feed water pupm
Model : DG85-80x10
Rated current : 40 A
Rated flux : 85 m/h
Lift : 800 m
Cavitation allowance : 4.5 m
Rotary speed : 2950 r/m
Motor model : JK134-2
Motor rated power : 350 KW
Motor rated voltage : 6000 V
24. 4 # feed water pump
Model : DG45-80x10
Raged current : 387 A
Rated flux : 45 m/h
Lift : 800 m
Cavitation allowance : 4 m
Rotary speed : 2950 r/m
Motor model : JK123-2
Motor rated power : 220 KW
Motor rated voltage : 380 V
4, Specificaiton of Generator and Exciter
1.Generator
Manufacturer :Najing Steam tubine motor factory
Model : QF2-15-2
Power : 15000 MW
Power factor : 0.85
Rate voltage : 6300 V
Stator current : 161.7 A
Rotator current : 264.5 A
Permissional temperature rise of generator stator : 100 ºC
2.Air cooling unit
Model : LRW-360
Capacity of heat radiating 360 KW
Cooling air volume : 10 m/S
Cooling water volume : 100 m/h
3.Excitor
Manufacturer :Najing Steam tubine motor factory
Model : ZLG-70-30
Power 70 KW
Rated voltage: 220 V
Current : 318 A5, Specification of Regulation and Security System SNITEM SPECIFICAITONUNIT REMARK 1STEAM TURBINE RATED ROTARY SPEED 3000r / min2ROTARY SPPED UNEQUAL RATE5 ±1%3REGULATING VOLTAGE UNEQUAL TATE< 20%4REGUALTING SPEED SLOW RATE< 0.5%5SYNCHRonIZER REGULATING RANGE WITHOUT LOAD96 ~ 106%2880~3180 RNP TURN/MINUTS6REGUALTING RANGE 0.39~ 0.69Mpa7MAX RISED SPEED WITH LOAD< 3270r / min8INPUT OIL PRESSURE OF MAIN IMPLUSE PUMP0.1Mpa9OIL OUTPUT REESSURE OF MAIN PUMP1.08Mpa10RATE OUTPUT OIL PRESSURE OF IMPLUSE PUMP0.69Mpa11FIRST IMPLUSE OIL CIRCUIT PRESSURE 0.39Mpa12SECOND IMPULSE OIL CIRCUIT PRESSURE 0.34Mpa13MOTIVE STROKE OF HIGH PRESSURE OIL WITHOUT LOAD 11.59mm14MOTIVE STROKE OF HIGH PRESSURE OIL WITH LOAD 59.66mm15MOTIVE STROKE OF HIGH PRESSURE OIL WITH RATED THERMAL LOAD 90.06mm16MAX MOTIVE STROKE OF HIGH PRESSURE OIL136mm17MOTIVE STROKE OF LOW PRESSURE OUL WITHOUT LOAD0mm18MOTIVE STROKE OF LOW PRESSURE OIL WITH ELECTRICITY LOAD 89.17mm19MOTIVE STROKE OF LOW PRESSURE OIL WITH THERMAL LOAD31.7mm20MAX MOTIVE STROKE OF LOW PRESSURE OIL89.5mm21MOTIVE SPEED OF CRISIS INTERRUPTER3270-3330r / minSTOP MACHINE22RECOVRY SPEED OF CRISIS INTERUPTER3055 ± 15r / minMANUAL RECOVERY23MOTIVE SPEED OF CRISIS INTERRUPTER WHEN OIL SPOUTING TEST2920 ± 30r / min24STOP ROTARY SPEED WHEN OVER SPEED IN DIGITAL METER3360r / min25AXIAL DISPLACEMENT FORWARD ALARM VALUE + 0.8mm26AXIAL DISPLANCEMENT FORWARD STOP VALUE+ 1.0mm27AXIAL DISPLACEMENT NEGATIVE STOP VALUE - 1.2mm28LOW VACUUM ALARM VALUE OF ConDENSER - 0.087Mpa661 mmHg29LOW VACUUM STOP VALUE OF ConDENSER - 0.061Mpa464 mmHg30AXLE BUSH BACK TEMPERATURE ALARM VALUE 65ºC31AXLE BUSH BACK TEMPERATURE STOP VALUE 75ºC32AXLE BUSH BEARING TILE TEMPERATURE ALARM VALUE 100ºC33AXLE BUSH BEARING TILE TEMPERATURE STOP VALUE110ºC34OUTPUT OILLOW PRESSURE ALARY OF MAIN OIL PUMP 0.9MpaAC PUMP WORKING,,ALARM35LUBE OIL PRESSURE LOWER 0.05-0.055MpaAC PUMP WORKING ,ALARM36LUBE OIL PRESSURE LOWER 0.04MpaDC PUMP OWKRING ,ALARM37LUBE OIL PRESSURE LOWER 0.02 ~ 0.03MpaSTOP38LUBE OIL PRESSURE LOWER 0.015MpaSTOP MECHAINSM39LUBE OIL RRESSURE RISE 0.12Mpa(0.15Mpa)STOP AC PUMP,ALARM 40MAIN STEAM HIGH PRESSURE ALARM VALUE > 5.1Mpa41MAIN STEAM HIGH TEMPREAURE ALARM VALUE 470>DESIGNING+10ºC42VALVE SHUT TIME OF MAIN STEAM AND EXTRACTING < 1S