L-2 Presentation Gen Mech Aux

7/31/2019 L-2 Presentation Gen Mech Aux

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MECHANICAL AUXILIARY

SYSTEMS COMPRISES

FOLLOWING :

1. SEAL OIL SYSTEM

2. GAS SYSTEM

3. PRIMARY WATER SYSTEM

4. WASTE GAS SYSTEM

5. WASTE FLUID SYSTEM


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SEAL OIL SYSTEM IS DOUBLEFLOW TYPE, HAVING SEPARATE

HYDROGEN SIDE SEAL OIL CIRCUIT

AND AIR SIDE SEAL OIL CIRCUIT .


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ADVANTAGES OF DOUBLE FLOW SEAL OIL SYSTEM

PERFECT SEALING RESULTING TO BARE MIN.

HYDROGEN LOSS

BETTER HYDROGEN PURITY .

VACUUM TREATMENT OF THE SEAL OIL AND

RESULTING HYDROGEN LOSSES ARE AVOIDED.


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HYDROGEN SIDE SEAL OIL CIRCUIT

SEAL OIL TANK

AC SEAL OIL PUMP

2X100% DUTY SEAL OIL COOLERS

DUPLEX OIL FILTER

DEFFERENTIAL PRESSURE

REGULATING VALVEPRESSURE EQUALISING VALVE EE

PRESSURE EQUALISING VALVE TE


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AIR SIDE SEAL OIL CIRCUIT

MAIN SEAL OIL PUMP DRIVEN

BY AC MOTOR

STANDBY SEAL OIL PUMP

DRIVEN BY AC MOTOR

EMERGENCY SEAL OIL PUMP

DRIVEN BY DC MOTOR

2X100% AIR SIDE COOLERS


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DUPLEX OIL FILTERDIFFERENTIAL PRESSURE

REGULATING VALVES


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SEAL OIL EQUIPMENTS

SEAL OIL SYSTEM EQUIPMENTS ARE

MOUNTED BASICALLY ON THE FOUR

UNITS

SEAL OIL UNIT

SEAL OIL PUMP MOTOR UNIT

SEAL OIL VALVE RACK

MEASURING INSTRUMENT RACK


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THE GAS SYSTEM

GAS UNIT

HYDROGEN DISTRIBUTORCO2 DISTRIBUTOR

NITROGEN DISTRIBUTOR

GAS DRIER


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C02 SUPPLY

CO2 IS REQUIRED IN THE GENERATOR

TO CREATE AN INERT ENVIRONMENT IN

THE GENERATOR

CO2 AVAILABLE WITH A PURITY

GREATER THAN OR EQUAL TO 99.9%.

GAUGE PRESSURE:1-2.5 BAR

VOLUMETRIC FLOW RATE:144-216M3/HR.


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H2 SUPPLY

HYDROGEN SHALL BE AVAILABLE

WITH A PURITY LEVEL OF 99.9%

GAUGE PRESSURE: 8-9 BAR

VOLUMETRIC FLOW RATE:144-

216M3/HR.

CYLINDER CAPACITY:7M

3

.


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N2 SUPPLY

NITROGEN SHALL BE AVAILABLE WITH A

PURITY OF 99.9%.

NITROGEN IS REQUIRED FOR REMOVING

AIR ABOVE THE WATER LEVEL IN THE PW

TANK.

REMOVAL OF AIR ENSURES REMOVAL

OF OXYGEN DISSOLVED IN PRIMARY

WATER THUS ELIMINATING RISK OF

CORROSION.


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TECHNICAL DATA

MEDIUM: HYDROGEN

FLOW RATE: 50 M3/HR.

DEW POINT OF OUTLET GAS: (-) 40 DEG C

SILICA GEL FILLING: 19KG/ TOWER

ABSORPTION TIME: 8 HOURS

REGENERATION TIME: 3.5HOURS

HEATER RATING: 3KW, 415V

TOWER SIZE: DIA219.1X750

NO. OF DESSICANT TOWERS: TWO


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DESIGN PERSSURE: 10 BAR

HEIGHT OF DESSICANT COLUMN: 750 MM

CONTACT TIME OF HYDROGEN 4.7 SEC.

WITH DESSICANT:

PRESSURE DROP ACROSS 40 MMWC

DESSICANT BED:

AIR BLOWER CAPACITY: 90 M3/HR.,100-50MBAR


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THE PRIMARY WATER SYSTEM

PRIMARY WATER PUMP & FILTERUNIT

PRIMARY WATER COOLER UNIT

PRIMARY WATER TANK

PRIMARY WATER MEASURINGINSRUMENT RACK

ALKALYSER UNIT


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THE PRIMARY WATER PUMP

& FILTER UNIT COMRISES OF

THE FOLLOWING

COMPONENTS :

PRIMARY WATER PUMPSPRIMARY WATER FILTERFINE FILTERMIXED BED ION EXCHANGERFLOW METER

PRESSURE GAUGECONDUCTIVITY

TRANSMETTER

VALVES


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PRIMARY WATER SYSTEM

1. PRIMARY WATER TANK

2. PRESSURE REGULATOR

3. WASTE GAS EXIT

4. PUMP

5. COOLER

6. FILTER7. ION EXCHANGER

8. ALKALISATION UNIT

9. BYPASS LINE

10. C.W. FOR STATOR WINDI

11. C.W. FOR BUSHINGS

12. WATER TREATMENT13. TEFLON HOSE

14. C.W. MANIFOLD


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THE WASTE GAS SYSTEM

COMPRISES OF THE

FOLLOWING COMPONENTS :

VAPOUR EXHAUSTERSVACUUM SWITCHES

VALVES


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THE WASTE FLUID SYSTEM

COMRISES OF THE

FOLLOWING COMPONENTS :

DRAIL OIL COLLECTORLEVEL SWITCHVALVES


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L-2 Presentation Gen Mech Aux

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