LNG Steam Simulator Exercise

020. Run the Simulator to Start Distiller

[Load Snapshot "Ex_020_Changing Over from DO to HFO_Burning"]

- Asssume scenario as described below [but check to confirm] and then follow the given procedures

Electrical Power:-

Shore Power:Off; Emergency Generator:Auto Stand-by; Turbo Generators:One on load and the other off; Diesel Generator:On Load

Deaerator:-

Full with guage glass reading between 60~70 mm

Both Boilers:-

Both Boiler Press - aboout 6 Mpa; Both boilers are running on HFO supply.

Condenser:-

Condenser Vacuum is Satisfactory and Cooling on

Distilled Water Tank (DWT) & Atmospheric Drain Tank (ADT):-

Both DWT & ADT about 60% full.

>> Procedure to run up the Distiller:-

Main Distrib:
1 Close the Evaporator SW Pump Breaker
2 Close the Distillate pump Breaker
Distiller:
3 Open the SW suction to SW Feed pump Valve
4 Open both inlet and outlet SW Feed Pump valves
5 Start the SW Feed Pump
6 Open the Distiller SW feed inlet and outlet valves
7 Open the Distillate pump inlet and outlet valves
8 Open the Distillate Water Tank feed valve
9 Open the Air Ejector Valve
10 Open the De-Superheater Steam inlet and outlet valves
11 Start the Distillate Pump

Distillate flow to the Distilled Water Tank is indicated

Note:
If the DWT is dumping water to the ADT then the level in the DWT may not be rising.
When the condensate regulators settle and the ADT has >-5 inches of water the DWT dump to the ADT will stop (DWT to ADT regulator valve closes) and the DWT level will rise.

NOTE:

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