Technical Diary-KMPCL (2) (1)
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Transcript of Technical Diary-KMPCL (2) (1)
Technical Diary of KMPCL 6 x 600 MW plant consisting major operational design parameters, equipment spec, vendor name etc
Boiler Model: SG-2069/17.47-M921, manufactured by Shanghai Boiler Works Co., Ltd.The boiler is subcritical pressure intermediate primary reheat control circulation boiler with swing type temperature adjusting, four corners arrangement, tangential firing, positive pressure direct firing pulverizing system, single furnace, II-type outdoor arrangement, all-steel overhung construction, dry-ash.Main parameters table of TMCR working condition and BMCR working condition:NameUnitBMCRTMCR
Superheated steam flowt/h20691878
Steam pressure at super heater outletMPa (g)17.4717.31
Steam temperature at super heater outlet541541
Reheated steam flowt/h17511598
Steam pressure at re heater inletMPa (g)3.973.69
Steam pressure at re heater outletMPa (g)3.763.50
Steam temperature at re heater inlet332325
Steam temperature at re heater outlet541541
Economizer inlet feed water temperature282277
Heating surface structure dimensionHeating surface nameOutside diameterTransverse pitchLongitudinal pitchHeating areaNumber of rowNumber of piece
mmmmmmm2
Wall type reheater6063.50623.41558
Division wall superheater573012671616.8660
Platen superheater70/631016731764.72018
Platen reheater635087331774020
Final stage reheater6325411434768210
Final stage superheater51190.510250251086
Low temperature superheater57142114176151475
economizer4210090219262094
Coal qualityDesign coal typeWorst coal typeBest coal type
A)Technical analysis
Fixed carbon31.00%27.00%42.00%
Volatile matter22.00%18.00%27.90%
Ash content36.00%40.00%21.00%
Moisture11.00%15.00%9.10%
Gross calorific value as received basis (KCal/kg)420038004900
B) Elemental analysis
Carbon43.10 %38.00 %53.90 %
Hydrogen2.85 %2.50 %3.00 %
Nitrogen0.9 %0.50 %1.20 %
Sulfur0.4 %0.60 %0.30 %
Moisture11.0 %15.00 %9.10 %
Oxygen5.75 %3.40 %11.50 %
Ash content36.00 %40.00 %21.00 %
Fixed moisture6%7%
Gross calorific value as received basis (KCal/kg)420038004900
C) Deformation temperature1170 1170 1170
Softening temperature1300 13001300
Flow temperature1400 14001400
D) Grind ability Coefficient 504555
Light oil characteristic data tableNameUnitAverage value
Kinematic viscosity (at 38)Cst2.5-15.7
Pour pointSummer : 12, winter: 18
Mechanical impurities>66
Closed cup flash point%1.8
Sulphur content%0.25
Water content%0.02
Ash content%1.5
Heavy oil characteristic data tableCharacteristicUnitHFO
Ash, mass percent %0.1
Gross calorific value11000cal/g
Flash point, min>66
Kinematic viscosity at 50(cst), max180cst
Residue, mass percent (%), max0.25
Sulphur, total mass percent (%), max4.5
Water content, mass percent (%), max1.0
Asphalt mass percent (%), max25
Quality standard table for boiler feed water:ItemUnitvalue
PH value (25) 9.0~9.6
Hardnessmol/l~0
Dissolved oxygen (O2)g/l7
Iron (Fe)g/l20
Copper (Cu)g/l5
Oilmg/l0.3
Hydrazine (N2H4)g/l30
Conductivity 25s/cm0.3
Silicon dioxideComply with the standards
Quality standard table for boiler waterItemUnitvalue
PH value (25)9~10
Hardnessmol/l~0
Total salt contentmg/l20
Silicon dioxide (SiO2)mg/l0.25
Chloride ion CL-1mg/l1
Phosphate radicalmg/l0.5~3
Quality standard table for steamItemUnitvalue
Iron (Fe)g/kg20
Copper (Cu)g/kg5
Sodium (Na)g/kg10
Silicon dioxide (SiO2)g/kg20
Conductivity (25)s/cm0.30
Calculated Data Table of Boiler Thermal PerformanceA. Design parameters
No.ItemUnitBMCRTMCRHPHO*80%TMCR60%TMCR40%BMCR
1Main steam flow ratet/h2068.61877.91640.21474.21105836.4
2Superheated steam outlet pressureMpa17.4717.3117.1415.2411.558.82
3Superheated steam outlet temperature541541541541541529
4Reheated steam flow ratet/h1751.41597.91612.61272.6968.5748.1
5Reheated steam inlet pressureMpa3.953.693.832.932.221.65
6Reheated steam outlet pressureMpa3.743.503.632.782.101.56
7Reheated steam inlet temperature332.1324.8333.3316.6321.3313.8
8Reheated steam outlet temperature541541541541541514
9Feed water pressureMpa19.2418.8218.3616.3812.459.55
10Feed water temperature280275183261245229
11Attemperating water temperature182179182170159148
12Boiler barrel pressureMpa18.8418.4618.0216.0612.179.28
13Boiler barrel temperature361.2359.5357.5348.1326.3306.3
14Exhaust gas temperature (before correction)139.5138.0117.0134.5125.5112.5
15Exhaust gas temperature (after correction)135.0133.0113.5129.0119.5105.5
BHeat loss and heat load
No.ItemUnitBMCRTMCRHPHO*80%TMCR60%TMCR40%BMCR
1Heat loss carried off by exhaust dry flue gas%4.184.123.233.963.573.17
2Heat loss carried off by the moisture in fuel%1.641.641.611.631.621.61
3Heat loss carried off by the moisture produced by hydrogen burning%3.763.763.73.753.7 23.69
4Heat loss carried off by the moisture in air%0.170.170.130.160.150.13
5Heat loss due to unburned fuel%1.51.51.51.51.82
6Heat loss due to radiation%0.170.220.210.260.340.43
7Inestimable heat loss%0.350.350.350.350.350.35
8Manufacturer margin%0.70.70.70.70.70.7
9Total loss%12.4712.4611.4312.3112.2512.08
10High heat efficiency%87 5387.5488.5787.6987.7587 92
11Fuel consumptiont/h345.6318.7324.8259.9202.0155.7
12Burner operating layer\666543
13Excess air coefficient1.251.251.251.251.251.25
CSteam temperature
No.ItemUnitBMCRTMCRHPHO*80%TMCR60%TMCR40%TMCR
1Wall type reheater inlet temperature332325333317321303
2Wall type reheater outlet temperature371366372363371353
3Furnace roof superheater inlet temperature361359358348326306
4Furnace roof superheater outlet temperature363362361352332313
5Division wall superheater inlet temperature398393382378358338
6Division wall superheater outlet temperature443440428432424411
7Rear platen superheater inlet temperature443440428432424411
8Rear platen superheater outlet temperature499499493501505501
9Platen reheater inlet temperature371366372363371353
10Platen reheater outlet temperature468468470470477458
11Final stage reheater inlet temperature468468470470477458
12Final stage reheater outlet temperature541541540540540515
13Final stage superheater inlet temperature499499493501505501
14Final stage superheater outlet temperature541541541541541529
15Steam cooled pipe inlet temperature363362361352332313
16Steam cooled pipe outlet temperature364362362353334316
17LV superheater straight part inlet temperature394396413400398384
18LV superheater straight part outlet temperature404407429414415402
19Reversing chamber economizer hanging pipe inlet temperature323320275310296279
20Reversing chamber economizer hanging pipe outlet temperature325322279312299282
21Reversing chamber enclosure tube inlet temperature364362362353334316
22Reversing chamber enclosure tube outlet temperature365364364356339322
23LV superheater horizontal part inlet temperature365364364356339322
24LV superheater horizontal part outlet temperature394396413400398384
25Economizer hanging pipe inlet temperature323320274310295279
26Economizer hanging pipe outlet temperature323320275310296279
27Economizer inlet temperature282277185262246231
28Economizer outlet temperature323320274310295279
DFlue gas temperature
No.ItemUnitBMCRTMCRHPHO*80%TMCR60%TMCR40%BMCR
1Furnace outlet fluegas temperature104510331018983911841
2Wall type reheater inlet temperature132713301311131212351165
3Wall type reheater outlet temperature132713301311131212351165
4Furnace roof superheater inlet temperature132713301311131212351165
5Furnace roof superheater outlet temperature132713301311131212351165
6Division wall superheater inlet132713301311131212351165
7Division wall superheater outlet temperature11431134111510881017949
8Rear platen superheater inlet temperature11431134111510881017949
9Rear platen superheater outlet temperature104510331018983911841
10Platen reheater inlet temperature104510331018983911841
11Platen reheater outlet temperature932918908867800730
12Final stage reheater inlet temperature923909899858791721
13Final stage reheater outlet temperature837823816777721657
14Final stage superheater inlet temperature813799793753697634
15Final stage superheater outlet temperature731718714682639592
16Steam cooled pipe inlet temperature731718714682639592
17Steam cooled pipe outlet temperature724711707674632584
18LV superheater straight part inlet temperature724711707674632584
19LV superheater straight part outlet temperature686674673640599554
20Reversing chamber economizer hanging pipe inlet temperature686674673640599554
21Reversing chamber economizer hanging pipe outlet temperature678667665633593548
22Reversing chamber enclosure tube inlet temperature678667665633593548
23Reversing chamber enclosure tube outlet temperature662651649616575529
24LV superheater horizontal part inlet temperature662651649616575529
25LV superheater horizontal part outlet temperature488481484459431399
26Economizer hanging pipe inlet temperature488481484459431399
27Economizer hanging pipe outlet temperature486478482457428397
28Economizer inlet temperature486478482457428397
29Economizer outlet temperature342336279316292269
30Preheater inlet temperature342336279316292269
31Preheater outlet temperature 135133114129120106
EAverage velocity of flue gas
No.ItemUnitBMCRTMCRHPHO*80%TMCR60%TMCR40%BMCR
1Rear platen superheater flue gas velocity m/s8.78.08.06.34.63.3
2Platen reheater flue gas velocity m/s9.58.78.86.85.03.6
3Final stage reheater flue gas velocity m/s12.011.011.18.66.34.5
4Final stagesuperheater flue gas velocity m/s11.510.510.68.26.14.3
5Horizontal part low temperature superheater flue gas velocitym/s9.99.39.57.32.73.9
6Economizer flue gas velocitym/s8.57.87.66.24.63.4
FFlue gas flow rate
No.ItemUnitBMCRTMCRHPHO*80%TMCR80%TMCR60%TMR
1Primary air flow rate entering preheaterKg/h580183556376680792510512450868400738
2Preheater secondary air flow rateKg/h1790510161937015892341238461936317643036
3Flue gas flow rate entering preheaterKg/h269953224894112537100203008315756011113196
4Attemperating primary air flow rateKg/h21124821880816430421542415688895400
5Primary air flow rate out of preheaterKg/h399460377456500792332672276988226498
6Secondary air flow rate out of preheaterKg/h1771070159957015679941219021915797621796
7Flue gas flow rate out of preheaterKg/h289969226881312738340222736317700011308676
8Air leakage quantity from air to flue gasKg/h200160198720201240197280194400195480
9Air leakage quantity from primary air to secondary airKg/h230402232021600216001944019800
10Air leakage quantity from secondary air to flue gasKg/h424804212042840410403996041040
11Air leakage quantity from primary air to flue gasKg/h157680156600158400156240154440154440
GAir temperature
No.ItemUnitBMCRTMCRHPHO*80%TMCR60%TMCR40%BMCR
1Preheater inlet primary air temperature44.544.544.544.544.544.5
2Preheater inlet secondary air temperature37.337.337.337.337.337.3
3Preheater outlet primary air temperature302.0298.5245.0287.0269.5244.5
4Preheater outlet secondary air temperature312.0307.5254.5294.0275.0249.0
Main Piping Data
NO.ItemDesign pres.Mpa(g)Design temp.MAX pres.Mpa(a)MAX temp.Flowt/hPipe sizemmVelocitym/sMaterial
1Main steam pipe18.2454616.675382028ID489X5056.93A335P91
18.2454616.675381014ID349X3855.89A335P91
2Hot reheat steam pipe3.945463.725381717ID965X3260.90A335P91
3.945463.72538858.50ID686X2060.26A335P91
3Cold reheat steam pipe4.65354.944.133335.11717OD1066.8X22.236.01A672B70CL32
4.65354.944.133335.1858.50OD863.6X17.527.42A672B70CL32
4HP bypass pipe
Pipeline before the HP bypass valve18.2454616.675381241.40ID324X3579.38A335P91
Pipeline after the HP bypass valve4.65354.9416.675381430OD660X17.4880.25A672B70CL32
5LP bypass pipe
Pipeline before the LP bypass valve3.945463.725381430ID749X2684.20A335P91
3.945463.72538715ID533X2083.13A335P91
6NO.1 extraction steam pipe7.24415.626.672400.6152.17OD273X1437.8212Cr1MoV
7NO.2 extraction steam pipe4.65354.944.133335.1127.48OD273X1144.3620
8NO.3 extraction steam pipe2.50485.762.36469.6101.32OD377X1341.3212Cr1MoV
9NO.4 extraction steam common pipe1.10371.531.092357.8180.85OD630X1345.8820
10NO.4 extraction steam to deaerator pipe1.10371.531.092357.8108.58OD508X1042.2020
11NO.4 extraction steam to BFPT pipe1.10371.531.092357.872.27OD426X1341.8020
1.10371.531.092357.836.14OD325X1035.9520
12NO.5 extraction steam pipe0.35256.380.409244.750.86OD530X1140.1220
13NO.6 extraction steam pipe0.16194.800.23518647.82OD630X940.14Q235-A
14Feed water pipe for BFP outlet27.40282.3024.25282.32069.00OD508X405.1715NiCuMoNb5-6-4
32.90282.3030282.31034.50OD355.6X355.7515NiCuMoNb5-6-4
15Feed water recirculation pipe32.90181.5030181.50310.35OD219.1X22.23.9815NiCuMoNb5-6-4
16Condensate pump inlet pipe0.088746.700.010346.71538.46OD920X100.63Q235-A
17Condensate pump outlet pipe3.31144.9~3.246.71538.46OD508X162.420
Boiler drumLength of drum shell straight part26216mm,
Made byrolling of steel plate
Inner diameter1743mm
Total length including heads28585mm;
MaterialsSA-299
Down comer6 pieces
Feed water pipe base.3 pieces
Safety valve pipe base6
Continuous blowdown pipe base,2
Gross weight of drum286.2t.
Whirlpool separators114
NameSpecificationQuantity Average load of individual at BMCR
Whirlpool separator254mm11418.15 t/h
Corrugated plate drier90127mm27413.98 t/h
Main pipe specification of water cooling system:NameSpecificationModelMaterialPitch (mm)
Water wall pipes of chamber front wall, rear wall and two-side wall516.5Rifled pipe/light pipeSA210-A163.5
Rear wall furnace arch63.58Rifled pipeSA210-A176.2/152.4
Rear wall hanging pipe63.511Rifled pipeSA210-C381
Rear wall platen pipe63.511Rifled pipeSA210-A1152.4/254
Extension side wall63.58Light pipe20G127
Boiler barrel safety valveModelSetting pressure MPaBlowdown pressure MPaDischarge capacity T/HProportion in maximum evaporation capacity %
1.1749WB19.7919.0028484.9
2.1749WB19.7919.0028484.9
3.1749WB20.1918.9829684.9
4.1749WB20.1918.9829684.9
5.1749WB20.4018.9729884.9
6.1749WB20.4018.9729884.9
Superheater outlet safety valveModelSetting pressure MPaBlowdown pressureMPaDischarge capacityT/HProportion in maximum evaporation capacity %
1.1750WD18.3017.7516015.5
2.1750WD18.3017.7516015.5
Pneumatic discharge valveModelSetting pressure MPaBlowdown pressureMPaDischarge capacityT/HProportion in maximum evaporation capacity %
1.3538W18.2717.915622.6
2.3538W18.2717.915622.6
3.3538W18.2717.915622.6
Reheater inlet safety valveModelSetting pressure MPaBlowdown pressureMPaDischarge capacityT/HProportion in maximum evaporation capacity %
1.1705RRWB4.444.3124083.5
2.1705RRWB4.444.3124083.5
3.1705RRWB4.514.3724483.5
4.1705RRWB4.514.3724483.5
5.1705RRWB4.574.4324783.5
6.1705RRWB4.574.4324783.5
Reheater outlet safety valveModelSetting pressure MPaBlowdown pressureMPaDischarge capacityT/HProportion in maximum evaporation capacity %
1.1705RWD4.134.018821.5
2.1705RWD4.134.018821.5
Parameter of safety valve
Induced Draft FanNo.Working conditionCoal type ParametersTB working conditionBMCR working conditionTMCR working condition
Design coal typeCheck coal typeDesign coal type
1Fan inlet volume flow rate (m/s)690547549500
2Fan inlet static pressure (Pa)-6580-5220-5205-5065
3Fan inlet flue gas temperature ()150134.5130.0132.1
4Fan inlet medium density (kg/m)0.7410.7790.7850.785
5Inlet flue gas dust content (mg/Nm)230
6Fan static pressure rise (Pa)7479598360575593
Technical data of induced draft fanNo.ItemUnitInduced draft fan
1Fan modelG158/343
2Fan regulating device model8000Nm 4~20mA
3Impeller diametermm3430
4Bearing material42CrMo
5Hub material15MnV
6Blade material15MnV
7Impeller seriesLevel1
8Blade number of each stagePiece18
9Blade adjustable rangeDegree-70~+30
10Bore and stroke of hydraulic cylindermm/mmN/A
11Rotor weightkg~7500
12Rotor moment of inertiaKg.m26524
13Fan first critical speedr/min>956
14Air inlet box material/wall thickness/mmQ235/6
15Casing material/wall thickness/mmQ235A/16
16Diffuser material/wall thickness/mmQ235/6
17Fan bearing typeRoll
18Bearing lubrication typeThin oil
19Bearing cooling typeForced oil circulation + cooling wind
20Fan rotation direction (view form motor side)
Anticlockwise
21Fan total weightkg~55000
22Max lifting weight/max lifting height in installationkg~25000
m>3.8 (start from fan axial)
23Max lifting weight/max lifting height in maintenanceKg~7500
m>3.8 (start from fan axial)
Motor parameter No.Parameter nameUnitInduced draft fan
1ModelSTMKS900-8
2Electromotor typeThree phase squirrel cage asynchronous motor
3Rated powerkW6300J=6524 kgm2
4Rated voltagekV11
5Rated currentA388
6Rated powerHz50
7Rated speedrpm745
8Number of poles8
9Degree of protectionIPW55
10Insulation levelF
11Cooling modeIC81W
12Installation modeIMB3
13Working systemS1
14Efficiency%
Efficiency at rated load%96.0
3/4Efficiency at rated load%95.6
1/2Efficiency at rated load%94.2
15Power factor
Power factor at rated load0.88
Power factor at 3/4 rated load0.85
Power factor at 1/2 rated load0.80
16Maximum torque/rated torque2.2
17Locked rotor torque/rated torque0.45
18Locked rotor current/rated current6.0
19Accelerating time and starting time(under rated load working condition)s17
20Motor moment of inertiaKg.m2
21NoisedB(A)85
22Vibration amplitude at bearing pedestalmm0.076
23Bearing vibrating velocitymm/s
24Stator temperature riseK70
25Number of phasesThree
26Temperature measuring elementPt100
27Bearing modelDomestic sliding
Bearing model trademark46# steam turbine oil L-TSA
Bearing lubrication typeForced thin lubricating oil
Bearing cooling modeOil cooling
28Motor weightKg45000
29Bearing lubricating oil flow (L/min)16
30CT mode ratio/accuracy levelConfirmed by design liaison meeting
31Rotating directionConfirmed by fan manufacturer
32Allowed locked rotor times41
33Recommended lubricant46# steam turbine oil L-TSA
34Resistance and temperature detector & model for stator use
Pt100
35Bearing temperature detector & modelPt100, bimetal thermometer
Main technical data of oil systemNo.ItemUnitInduced draft fan
1Flow ratel/min40 (shared by fan and motor)
2PressureMPa0.4
3Oil quality trademarkN46 or N68
4Oil tank material/volume/m3Q235/0.6
5Oil filter filtering precision25
6Oil cooler water quantity2.5
7Oil cooler water pressureMPa
8Oil cooler modelPlate type
9Oil pump modelGear pump
10Oil pump numberSet2
11Oil pump speedr/min1470
12Oil pump power5.5
13Quantity of oil tank electric heaterSet1
14Power of oil tank electric heaterKW3
Cooling Water Data TableEquipmentEquipment nameWater quality requirementWater pressure requirementWater temperature requirement
Water quantity requirement
Induced draft fan
Lubricating oil station cooling water flow rateCommon industrial water1MPa386.3 T/h
Forced Draft FanFan performance dataForced draft fan work condition
ItemTB working conditionB-MCR working conditionTMCR working condition
Fan inlet volume flow rate (m3/s)303275248
Fan inlet temperature ()484848
Inlet air density (kg/m3)1.0381.0381.038
Fan inlet total pressure (Pa)-950-875-823
Fan inlet static pressure (Pa)-950-875-823
Fan outlet total pressure (Pa)372230182924
Fan outlet static pressure (Pa)363429452865
Fan total pressure rise (Pa)467238933747
Fan static pressure rise (Pa)458438203688
Fan outlet wind temperature ()53.052.151.9
Fan accessory loss (Pa)IncludedIncludedIncluded
Fan total pressure efficiency (%)8587.388.0
Fan shaft output (kW)1636.81209.11042.2
Fan speed (r/min) 990990990
Technical data of forced draft fanNo.ItemUnitforced draft fan
1Fan modelANN-2575/1250C
2Fan regulating device model5t hydraulic cylinder
3Impeller diametermm2575
4Bearing material35CrMo
5Hub materialForging steel
6Blade materialCast aluminium alloy
7Impeller seriesLevel1
8Blade number of each stagePiece16
9Blade adjustable rangeDegree30~85
10Bore and stroke of hydraulic cylindermm/mm250/96
11Rotor weightkg3597
12Rotor moment of inertiaKg.m2387
13Fan first critical speedr/min1287
14Air inlet box material/wall thickness/mmQ235A/6
15Casing material/wall thickness/mmQ235A/12
16Diffuser material/wall thickness/mmQ235A/6
17Fan bearing typeRolling bearing
18Bearing lubrication typeOil bath lubrication
19Bearing cooling typeNatural cooling
20Bearing bush cooling water volumet/h1.7
21Fan rotation direction (view form motor side)Clockwise
22Muffler resistancePa150
23Fan total weightkg16087
24Max lifting weight/max lifting height in installationkg7620
m3.7
25Max lifting weight/max lifting height in maintenanceKg1600
m3.7
Motor ParameterItemUnitSecondary fan motor
ModelSTMKS500-6
Rated powerkW1900
Rated voltagekV11
Synchronous speedr/min1000
Start-up currentA690
Rated currentA118
FrequencyHz50
Main featuresEfficiency95.8
Power factor0.88
Locked rotor torque0.5
Locked rotor current6.0
Max torque2.0
Insulation levelF/B
Weightkg18000
Cooling modeAir water cooling
Main technical data of oil systemNo.ItemUnitValue (forced draft fan hydraulic pressure)
1Flow ratel/min10~12
2PressureMPa8.0
3Oil quality trademarkISO VG 32
4Oil tank material/volume/m3Low carbon steel spray paint/0.203
5Oil filter filtering precision10
6Oil cooler water quantity0.24
7Oil cooler water pressureMPa0.2~0.4
8Oil cooler modelPlate type
9Oil pump modelGear pump
10Oil pump numberSet2
11Oil pump speedr/min1430
12Oil pump power2.2
13Quantity of oil tank electric heaterSet2
14Power of oil tank electric heaterkW1.0
Primary Air Fan
Performance data of primary air fanItem Primary air fan Working condition
TB working conditionBMCR working conditionTMCR working condition
Fan inlet volume flow rate (m3/s)178162156
Fan inlet temperature ()484848
Inlet air density (kg/m3)1.0441.0441.044
Fan inlet total pressure (Pa)-550-458-446
Fan inlet static pressure (Pa)-550-458-446
Fan outlet total pressure (Pa)130701082310477
Fan outlet static pressure (Pa)129501072210383
Fan total pressure rise (Pa)136201128110923
Fan static pressure rise (Pa)135001118010829
Fan outlet wind temperature ()61.959.459.1
Fan accessory loss (Pa)IncludedIncludedIncluded
Fan total pressure efficiency (%)8788.088.0
Fan shaft output (kW)2653.21993.91861.7
Fan speed (r/min)149014901490
Technical data of primary air fanNo.ItemUnitPrimary air fan
1Fan modelANT-2062/1250N
2Fan regulating device model10t hydraulic cylinder
3Impeller diametermm2062
4Bearing material35CrMo
5Hub materialForging steel
6Blade materialCast aluminium alloy
7Impeller seriesLevel2
8Blade number of each stagePiece22
9Blade adjustable rangeDegree10~55
10Bore and stroke of hydraulic cylindermm/mm250/96
11Rotor weightkg4117
12Rotor moment of inertiaKg.m2674
13Fan first critical speedr/min1938
14Air inlet box material/wall thickness/mmQ235A/5
15Casing material/wall thickness/mmQ235A/12
16Diffuser material/wall thickness/mmQ235A/5
17Fan bearing typeRolling bearing
18Bearing lubrication typeForced lubrication
19Bearing cooling typeForced cooling
20Bearing bush cooling water volumet/h
21Fan rotation direction (view form motor side)Clockwise
22Muffler resistancePa150
23Fan total weightkg15797
24Max lifting weight/max lifting height in installationkg4320
m2.8
25Max lifting weight/max lifting height in maintenanceKg2640
m2.8
Technical data of primary air fan motorItemUnitPrimary air fan motor
ModelSTMKS560-4
Rated powerkW2900
Rated voltagekV11
Synchronous speedr/min1500
Start-up currentA1038
Rated currentA173
FrequencyHz50
Main featuresEfficiency95.6
Power factor0.89
Locked rotor torque0.5
Locked rotor current6.0
Max torque2.2
Insulation levelF/B
Weightkg21300
Cooling modeAir water cooling
Main technical data of primary air fan oil systemNo.ItemUnitValue (Hydraulic oil station)Value (Lubricating oil station)
1Flow ratel/min10~1215~18
2pressureMPa8.01.5~2.0
3Oil quality trademarkISO VG 32ISO VG 46
4Oil tank material/volume/m3Low carbon steel spray paint/0.203Low carbon steel spray paint/0.369
5Oil filter filtering precision1010
6Oil cooler water quantity0.240.6
7Oil cooler water pressureMPa0.2~0.40.2~0.4
8Oil cooler modelPlate typePlate type
9Oil pump modelGear pumpGear pump
10Oil pump numberSet22
11Oil pump speedr/min14301430
12Oil pump power2.20.75
13Quantity of oil tank electric heaterSet22
14Power of oil tank electric heaterkW1.01.0
Data of Primary Air Fan Oil station cooling water Equipment nameWater quality requirementWater pressure requirementWater temperature requirementWater quantity requirement
Lubricating oil station cooling water flow rateDemineralized water0.4~0.6Mpa4000
LP rotor B19031750>4000>4000
Generator rotor9841070>34003338
Parameters of steam extraction of all stages during TMCR operating condition Steam extraction stagesFlow (kg/h)Pressure (MPa (a))Temperature()Allowable max steam flow (kg/h)
First stage (to # 1HP heater)1354936.189391.8
Second stage (to 2# HP heater)1153713.853327.8
Third stage (to #3 HP heater)919472.203470.1
Fourth stage (to deaerator)992601.021358.5
Fourth stage (to small steam turbine)669891.021358.5
Fourth stage (to plant steam turbine)
Fifth stage (to #5 LP heater)466010.383245.4
Fifth stage (to plant steam turbine)
Sixth stage (to #6 LP heater)440500.220186.7
Seventh stage (to #7 LP heater)410780.121129.2
Eighth stage (to #8 LP heater)791350.06487.8
Specification of heater Specification of HP heaterItemUnitHP heater #1HP heater #2HP heater #3
ModelJG-2550JG-2680JG-2070
TypeHorizontal U-tubeHorizontal U-tubeHorizontal U-tube
Terminal temperature difference of feed water-1.700
Drainage terminal temperature difference5.65.65.6
Heating steam pressureMPa6.1893.8532.203
Heating steam temperature391.8327.8470.1
Enthalpy of heating steamkJ/kg3155.43042.23399.3
Feed water flowt/h187818781878
Inlet/outlet temperature of feed water246.3/277.3215.7/246.3182.2/215.7
Drainage flow from higher levelt/h135.49250.87
Drainage temperature from higher level251.9221.3
Effective heat exchange area of heaterm2255026802070
Effective surface area of drainage cooling sectionm2335437434
Effective surface area of condensing sectionm2190120031460
Effective surface area of steam cooling sectionm2314240176
Log mean temperature difference56.1/10.65/13.3244.4/9.91/13.07121.5/12.93/13.18
Heat exchange ratekJ/hr..m246373905/243196469/1840166324335834/229721906/3342333048352891/207444471/47760628
Total heat exchange coefficientkJ/hr..m22632/12012/41242283/11573/58522261/10989/8350
Specification of LP heaterItemUnit#5 LP heater#6 LP heater#7 LP heater#8 LP heater
ModelJD-1100-IVJD-1100-IIIJD-1620-IJD-1620- II
TypeHorizontalHorizontalHorizontal and compositeHorizontal and composite
Heating surface aream211001100650970
Design pressure of tube sideMPa4.04.04.04.0
Design temperature of tube side170150150150
Design pressure of shell sideMPa0.60.60.140.07
Design temperature of shell side265200150150
ManufacturerDongfang Steam Turbine Works
Specification of DeaeratorType YC-2069/230
Mode Internal Deaerator
Manufacturer DONGFANG BOILER GROUP CO.,LTD.
Shell materialSA-516GR70
Head material SA-516GR70
Deaerator rated output2069 TPH
Deaerator maximum output2400 TPH
The minimum stable operation output600 TPH
Deaerator maximum work pressure1.092 Mpa
The minimum stable operation pressure0.15 Mpa
Heating steam temperature under VWO condition357.8 Deg.Cen
Heating steam maximum temperature364.7 Deg.Cen
Deaerator design pressure1.3 Mpa
Deaerator design temperature370(steam pipeline) / 350(shell) Deg.Cen
Deaerator inlet water temperature139.8 Deg. Cen
The allowed minimum inlet water temperature100 Deg. Cen
Deaerator outlet water temperature181.5 Deg. Cen
Loss of discharging steam0.5 % Kg/h
Deaerator diameter3800 mm
Thickness of deaerator shell and head30 mm
Corrosion allowance2.5 mm
Welding coefficient1
Deaerator operation modeConstant-sliding pressure composite operation
Number of nozzles 2 piece
Nozzle materialstainless steel
Nozzle specification1200 TPH
Pressure droop under nozzle rated flow50 Kpa
Pressure droop under nozzle maximum flow58.8 Kpa
Deaerator effective volume230 m3
Deaerator total volume390 m3
Umber of safety valve2 piece
Safety valve typeA48Y-40
Safety valve dimensionDN200 mm
Safety valve nominal pressure4 Mpa
Safety valve setting pressure1.2 Mpa
Safety valve theory discharging capacity6400 Kg/h
TMCR normal operation discharging capacity490 Kg/h
Standby startup steam pressure 0.15 Mpa
Standby startup steam temperature250 - 300 Deg. Cen
Preheating time for cold state startup1.52 h
Diameter/length (including head)/thickness3800/35660/30 mm
Total height after installation (including support saddles)5800 mm
Equipment operation weight345100 kg
Deaerator net weight141500 kg
Weight of equipment filled with water531500 kg
Specification of feed water pump unit equipmentSpecification of feed water pump & booster pumpItemUnitOperating conditionRemarks
BMCR operating conditionTMCR operating conditionMax flow of single pumpMin flow of single pump
Model of booster pumpSQN300-670
Inlet water temperature of booster pump181.5178.6181.5181.5
Inlet water flow of booster pumpt/h119510571195265
Head of booster pumpmH2O133.5139.4133.5145
Efficiency of booster pump%82.283.582.242
Net positive suction head necessary for booster pumpm4.63.14.61.5
Booster pump speedr/min1490
Shaft power of booster pumpkW528.5480.5528.5270
Normal bearing bracket of booster pump (peak to peak)mm0.071
Weight of booster pumpkg2710
Model of main pumpCHTC6/5
Inlet water temperature of main pump181.5178.6181.5181.5
Outlet water flow of main pumpt/h116810331168265
Outlet water pressure of main pumpMPa(g)24.2522.7824.2529.35
Efficiency of main pump%82.882.482.837
Necessary net positive suction headm48.640.848.627.5
Bleed-off pressureMPa(g)10.610.2410.60
Bleed-off flowt/h2724270
Seal typeMechanical seal
Speedr/min5268498052685268
Shaft power of main pumpkW9872817098727500
Vibration amplitude of normal bearing bracket (peak to peak) mm0.036
Nominal pressure of booster pump connection flangeInletMPa4.0
OutletMPa4.0
Nominal pressure of main feed water pump connection flangeInletMPa4.0
OutletMPa40
Specification of booster pump connection pipe (S)InletmmDN400
OutletmmDN300
Specification of main pump connection pipe (S)InletmmDN300
OutletmmDN250
Weightkg10600
Rotating directionClockwise (view form drive side to pump)
Bearing typethrust bearing +sliding bearing
Drive modeThe electric feed water pump is motor; steam feed water pump is donkey engine
Efficiency of electric feed water pump unit%76%76.1%//
Efficiency of steam feed pump unit%81%80%//
Note: (g) in the Table means gauge pressureSpecification of hydraulic couplingItemUnitData
ManufacturerVOITH, German
ModelR18K500M
Carry over speedr/min1490
Speed of rated outputr/min5268
Rated output powerkW9872
Weightkg9200
Governing range%25-100
Rated slip%2.42
Rotating direction of output shaftAnticlockwise (view from pump to coupling)
Motor technical specification of booster pump and electric feed water pump unit:ItemUnitEquipment name
Motor of steam pump & booster pumpMotor of electric feed water pump
ManufacturerShanghai Electric Machinery Co., Ltd./Xiangtan Electric Motor Factory
ModelYKK500-4YKS1000-4
Rated powerkW63012000
Rated voltageKV1111
Synchronous speedr/min15001500
FrequencyHz5050
Efficiency%9496.8
Power factor0.880.88
Locked-rotor torque(times)0.90.5
Locked rotor current(times)6.05.4
Max torque(times)2.01.8
Insulation levelFF
WeightKg445037000
Cooling modeAir-air coolingAir-air cooling
Rotating directionAlong with the driver
Parameter table of feed water pump steam turbine operating conditionItemUnitVWO operating conditionTMCR operating conditionHP heater full cutting operating condition80%TMCR operating condition60%TMCR operating condition40%TMCR operating condition
Steam pressureMPa1.0921.0211.0990.8260.6420.453
Steam temperature357.8358.5363.1360.3363.2342.8
Steam flowt/h50.543.6
BackpressurekPa11.311.311.311.311.311.3
Speedr/min52684980Meet the requirements of feed water pump operation.
Relative internal efficiency%84.283.18
Mechanical losskW150150
Output powerkW98728170
Steam losskg/kW.h5.1165.337
Exhaust amountt/h50.543.6
Exhaust temperature48.248.2
Exhaust enthalpykJ/kg24612489
Technical specification table of steam turbine driven feed water pumpItemUnitData
ModelNK63/71
TypeSingle cylinder, single-flow, single shaft, reaction, pure condensing, downward exhaust, low temperature and reheat steam external switching
Operating modeVariable power, variable parameter and variable speed
Rated powerkW8170
Max continuous powerkW12000
Efficiency within rated operating condition(TMCR)%83.18
Rated admission pressureMPa.a1.021
Rated admission temperature358.5
Rated exhaust pressurekPa.a11.3
Rated exhaust temperature48.2
Max exhaust temperatureAbout 108.1
Governing ranger/min3000~6000
Max permissible admission pressureMPa.a2.5
Max permissible admission temperatureAbout 100
Steam inlet flowt/h51.5
Steam source switching point30%~40%Rated operating condition
Critical speed of first orderr/min~7000
Connection mode with feed water pumpGear elastic coupling
Rotating directionClockwise (viewed form steam turbine head to pump), finally confirmed by feed water pump factory.
Max noise level (1m away from the feed water steam turbine shell) DB(A)85
Installation modeIndependent chassis, segmental hoisting
Direction of exhaust portDownward
Size of exhaust portmm12702270
Overall dimension (including outer casing)mm401039203600
Size form operating level to flange facemm1800
Total weightt50
Rotor weightt5.3
Upper cylinder weightt9
Lower cylinder weightt12.1
Weight of maximum transported part (name)t36
Weight of maximum maintained part (name)t9
Parameter of Governing safeguard systemNameUnitValue
1. Type of governing systemMEH
2. Control valve
QuantityPiece1
Inner diametermm350
Material of valve body and valve handleZG25A2Cr12MoV
3. Main steam stop valve
QuantityPiece5
Inner diametermm4 100, 1 160
Material of valve body and valve handleZG25A, 2Cr12MoV
4. Steam check valve
5. Emergency governor
TypeMechanical
QuantitySet1
7. TripSet1
Trip when axial displacement increasesMm0.8
Trip when the vacuum is lowMPa0.07
Trip when the lubricating oil pressure is lowMPa (a)0.08
8. Atmospheric release valveSafety diaphragm plate
Lubricating oil system of feed water pump steam turbineNameUnitValue
1.Oil trademark and oil quality standardISO VG32
2. Required oil quantity of oil systemKg8000
3. Circulation rate of bearing oil8
4. Bearing oil pressure0.15
5. Main oil tank
ModelYX-0630
Capacitym310
Dimensionmmmmmm335017002100
Design pressureMPa (g)0.6
MaterialCarbon steel
Weight of oil tankKg3300
Return oil flowKg34500~68000
6. Main oil pump
TypeVertical centrifugal oil pump
Manufactured byBeijing HighStar Pump Co., Ltd., Sichuan Shengda Pump Industry Equipment Manufacture Co., Ltd., Zigong Dongfang Filter Manufacture Co., Ltd.
Flowm3/h30~90
Outlet pressureMPa(g)1.1~1.0
Speedr/min2950
Motor capacityKW55
Motor voltagev415
Total weightKg800
7. Oil cooler
Type (plate type)Plate type
Manufactured byAPV
QuantitySet2
Effective cooling aream230
Design temperature of cooling water inlet36
Outlet oil temperature45
Cooling water flowkg/h130000
Thickness of plate
Design pressureMPa (g) 1.0 (water side), 1.6 (oil side)
Design temperature:80
Material of plate:TP316L
Total weight of each setkg~250(operating)
8. Auxiliary oil pump
TypeVertical centrifugal oil pump
ManufacturerBeijing HighStar Pump Co., Ltd., Sichuan Shengda Pump Industry Equipment Manufacture Co., Ltd., Zigong Dongfang Filter Manufacture Co., Ltd.
QuantitySet1
Flowm3/h30~90
Outlet pressureMPa (g) 1.1~1.0
Speedr/min2950
Motor capacitykW55
Motor voltageV415
Total weightkg800
9. DC emergency oil pump
TypeDC gear oil pump
ManufacturerBeijing HighStar Pump Co., Ltd., Sichuan Shengda Pump Industry Equipment Manufacture Co., Ltd., Zigong Dongfang Filter Manufacture Co., Ltd.
QuantitySet1
Capacitym3/h18
Outlet pressureMPa (g) 0.36
Speedr/min1000
Motor capacitykW5.5
Motor voltageV220 VDC
Total weightkg200
10. Oil temperature regulator (temperature control valve)
Type3BRSJ11507-00-AA
Manufactured byAmerican AMOT
QuantitySet1
Capacitykg/h32000
Size3
Total weight35
11. Oil filter (lubricating)
TypeDuplex
Manufactured byHANGZHOU STEAM TURBINE CO., LTD.
QuantitySet1
Capacity2100%
Overall dimensionmm850320800
12. Range hood of oil tank
TypeVertical
ModelAC
Manufactured byYuhang Special Fan Co., Ltd.
QuantitySet2
Operating air flowm3/h7
Test air flowm3/h420
Wind pressureKPa2.5
Speedr/min2830
Motor capacitykW1.1
Motor voltageV415
Motor modelYB802-2
Total weightkg17
Turning Gear of TDBFPNameUnitValue
TypeOil turbine
Turning SpeedRpm~120
Protection of feed water steam turbine Exhaust pressure upper limit alarmMpa0.05
Exhaust pressure upper limit shutdownMpa0.07
Exhaust temperature upper limit alarm80
Low lubricating oil pressure protectionAlarmMpa0.15
AC lubricating oil pump is put into operation Mpa0.1
Shut down and Interlocking start DC lubricating oil pumpMpa0.08
Electric turning gear must not be put into operationMpa0.04
Low safeguard oil pressure protectionShut downMpa6 (meter)
High bearing temperature protection AlarmReturn oil temperature65
Bearing pad temperature95
ShutdownReturn oil temperature70
Bearing pad temperature110
Shaft vibration protectionAlarmmm0.1
Shutdownmm0.125
Parameters of couplingBearing temperatureWorking rangeAlarm temperatureShutdown temperature6035 45 35 45 74kPa; HP bypass flow: >120t/h;Warm startup (shutdown for 48h): Main steam pressure: 8.62MPa; Main steam temperature: 400;Reheated steam pressure: 1.10MPa; Reheated steam temperature: 380;Condenser vacuum: >74KPa; HP bypass flow: >150t/h;
Hot startup (shutdown for 8h): Main steam pressure: 8.62MPa; Main steam temperature: 440;Reheated steam pressure: 1.10MPa; Reheated steam temperature: 420;Condenser vacuum: >74KPa; HP bypass flow: >190t/h;Very hot startup (shutdown for 8h):Main steam pressure: 12.9MPa; Main steam temperature: 500;Reheated steam pressure: 1.10MPa; Reheated steam temperature: 480;Condenser vacuum: >74KPa; HP bypass flow: >190t/h;
Perform silicon cleaning according to the requirements under each pressure in the following table.Pressure (MPa)9.811.814.716.717.7
SiO2 content (mg/L)3.31.280.50.30.2
Table for opening state and function of valves on in all the stages of IP cylinder startupPeriod/FunctionICVCVVVCRCVHPBVLPBV
Before impulse startingFully closedFully closedFully closedFully closedPartially openPartially open
AccelerationPartially openSlightly open in cold state and fully open in other statesFully openFully closedPartially openPartially open
Cold warming upPartially openSlightly open in cold state and fully open in other statesFully openFully closedPartially openPartially open
SynchronizationPartially openFully closedFully openFully closedPartially openPartially open
With initial loadPartially openFully closedFully openFully closedPartially openPartially open
Switch loadPartially open to fully openFully closed to partially openFully open to fully closedFully closed to Fully openPartially open to fully closedPartially open to fully closed
Run upFully openPartially openFully closedFully openFully closedFully closed
Run downPartially openPartially openFully closedFully openFully closedFully closed
TripFully closedFully closedFully closedFully closedPartially openPartially open
FunctionControl steam admission of IP cylinderControl steam quantity with loadPrevent over temperature of HP cylinder steam exhaustPrevent inverse flow of steam to HP cylinderControl main steam pressureControl pressure of reheater
Monitoring of Normal Operation ParametersLimitation of the normal operation main parameters of turbineNo.ParameterUnitNormalUpper limitLower limitTrip
1Speedrpm30003360
2LoadMW600640
3Main steam temperature538546528
4HP exhaust temperature