LNG Steam Simulator Exercise

012. Run the Simulator to Produce Condenser Vacuum

[Load Snapshot "Ex_012_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; Both Turbo Generators:Off; Diesel Generator:On

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.

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

Both DWT & ADT about 60% full.

>> Procedure to Produce a Vacuum:-

Main Distrib:
1 Close Main Vac Pump #1 breaker.
2 Close Main Vac Pump #2 breaker.
Condensate:
3 Open Main Vac Pump #1 Suction and Discharge Valves.
4 Open Main Vac Pump #2 Suction and Discharge Valves.
5 Start Main Vac Pump #1.
T/Bines and Feed
6 Ensure that 150 psi regulated steam is available
7 Open the Gland Steam Feed valve from the 150 psi regulated steam line.
Main Condenser:
8 Wait for the Vac Alarm to clear.
Condensate:
9 Put Main Vac Pump #2 into stand-by.
Main Condenser:
10 Monitor Vacuum Level.

NOTE:

1) Check Knowledgebase - .........