1. bcp technical & operating data
DESCRIPTION
Operation and technical details of Torishima pumpsTRANSCRIPT
TORISHIMATORISHIMABoiler Circulation PumpsBoiler Circulation Pumps
HLAVHLAV
ContentsContents
1. Technical Data 1. Technical Data 2. Operating Data 2. Operating Data
Training course 1
Technical Study
Date : 22. Jun. 2012
Des
ign
pres
sure
: kg
f/cm
2
1.Technical Data1.Technical Dataand Operating Rangeand Operating Range
Design pressureTotal headCapacityDesign temperatureSizesSpeed
Motor ratingVoltage
400
200
100
50
20
10 100 1000 7000
Tot
al h
ead
: m
CapacityQ : m3h
HLAV K type
HLV H type
HLAV C type
HLAV M typeHLV M type
326
255224
133
102
100 200 300 330 375 420
Design Temperature : C
up to 326 kgf/cm2 up to 320 mup to 6,840 m3/hup to 420 deg.C 2 to 16 in2900,1450,3500,1750 rpmup to 2,500 kWup to 11 kV
Tuticorin 2x500MW :370 deg.C x 214 kg/cm2
Tuticorin 2x500MW ; 2987 m3/h x 31.04 m
Sample data for Training
1-2. Torishima BCP : Features - Benefits
(1) GENERAL DESIGN(1) GENERAL DESIGN
① Simple Structure→ Maintenance free and high reliability→ Easy start-up and shut-down operation.
② Direct connection of the pump and pipeline →No foundation work and easy installation
③ Vertical suspension type design→Less plant space required
④ Pull-out system design→Easy installation, overhaul and inspection work.
⑤ Glandless→ No Seal / No Leakage
⑥ Highly durable water- lubricated bearings→ Maintenance free bearings
⑦ Variable type of casings→ Spherical, volute or annular design
(2) PUMP DESIGN(2) PUMP DESIGN
(3) MOTOR DESIGN(3) MOTOR DESIGN
⑧ Effective motor cooling circuit→ Only low pressure cooling water is required (High pressure cooling water is not needed)
⑨ Wet-type coil motor→ High efficiency and reliability
・ High voltage application (up to 10kV)→ Contributes to power saving for the whole plant
DIFFUSER
MOTOR COOLER
THRUST BEARING CASE
THRUST BEARING SEGMENT (UPPER)
PLAIN BEARING (LOWER)
ROTOR
STATOR
HEAT BARRIER
MOTOR CASING
PLAIN BEARING (UPPER)
PUMP CASINGIMPELLER
SHAFT
STUD BOLT
MOTOR WINDING
BEARING BRACKET
THRUST BEARING PLATE
THRUST BEARING SEGMENT (LOWER)
FILTER
Construction Construction of BCPof BCP
① Simple Structure
Nozzle orientationSuction nozzle is arranged axially(end suction) and the discharge nozzleradially.
The nozzle can be provided with welding stub ends.
Nozzle
② Direct connection of the pump and pipeline
Nozzle
Motor
Casing
Heat barrier
Bearings
This vertical pump is suspended in the pipe line without any external supports.
No anchorage point in the piping system.
During overhauls, the pump casing canremain attached to the pipe line.
The motor unit, together with the heat barrier and the impeller, can be removedfrom the casing after unscrewing the tiebolts.
③ Vertical suspension type design
④ Pull- out system design
Casing
CasingThe motor casing is flange-jointed to the pump casing.
Pump and motor pressure depends on the system pressure.
⑤ Glandless design
Bearings
BearingsThe shaft is supported by two self-lubricated plain bearings.
Thrust Bearing
Bearings
The axial thrust is balanced by a self-lubricated thrust bearing.
AxialAxial BearingBearing
Thrust bearing plate in the form of an auxiliary impeller
Thrust bearing plate
Upper thrust bearing segment
Lower thrust bearing segment
Axial BearingAxial Bearing
Phenolic Resin
SUS420J2HCr Plated
Thrust Bearing
Bearings
The axial thrust is balanced by a self-lubricated thrust bearing.
⑥ Highly- durable water- lubricated bearings
Casing
Spherical casing
Shape of Pump casing
Standard type
Volute casing Annular casing
⑦ Variable type of casings
Forged casingCast casing
Heat barrierHeat barrierA heat barrier is provided betweenthe pump and the motor.
The heat barrier prevents heat transfer from the hot pump to the cold motor.
The heat barrier protects the motor winding insulation.
Heat barrier cooling water also prevents heat transfer especially stand-by mode
Insulation class : YMotor design temp. : Max 90degC
Heat Barrier Cooling Water Line
Sectional view of Heat barrier
MotorThe motor is filled with water.
The HP cooling water inside the motor iscirculated by a thrust bearing plate.
The motor heat is transmitted to the LPcooling water in the motor cooler.
Motor cooler
Stator
Rotor
Thrust bearing plate
⑧ Effective Motor Cooling Circuit
Motor winding(Stator coil)
Insulation class : Y
Design temp. : 90 deg.C
Insulation material : Polyethylene
⑨ Wet- type Coil Motor
FilterThe filter keeps the HP cooling water clean.
Filter
2. Operating Data
2.1 Pump set
- Pump name Boiler Water Circulating Pump
- Number of sets per unit 3 set/unit
- Product number Tuticorin 2x500MW
AP930016/ AP930024
- Designation Glandless Circulating Pump
- Design pressure 214 kgf/cm2
- Design temperature
- Pump 370 deg.C
- Motor 90 deg.C
- Hydrostatic test pressure 321 kgf/cm2
Sample data for Training
2.2 Pump
- Type Vertical Glandless Centrifugal Pump
- Fluid pumped Boiler water
- Operating temperature 355.5 deg.C
- Capacity 2987 m3/h
- Total head 31.04 m
- NPSH req. 15 m
- Nominal size
- Suction nozzle OD457.2 mm
- Discharge nozzle OD371.5 mm
2. Operating DataSample data for Training
2.3 Motor
- Type Wet motor
- Nominal rating 350 kW
- Nominal speed 1,470 rpm
- Frequency 50 Hz
- Voltage 3,300 V
- Nominal current 89.7 A
- Starting current 539 A
- Insulation of motor winding PE2/PA
(cross link polyethylene/polyamide)
- Motor normal temp. 50 deg.C (at upper motor cavity)
- Motor alarm temp. 63 deg.C (at upper motor cavity)
- Motor trip temp. 66 deg.C (at upper motor cavity)
2. Operating DataSample data for Training
2.4 LP Cooling Water
- Heat Barrier
- Cooling water quantity required 30 L/min
- Inlet temperature 39 deg.C
- Cooling water pressure required Approx. 1 kgf/cm2
- Motor Cooler (Over 400kW Torishima supply)
- Quantity of heat to be eliminated 41kW
- Cooling water quantity required 150 L/min
- Inlet temperature 39 deg.C
- Cooling water pressure required Approx. 1 kgf/cm2
2. Operating DataSample data for Training