Posted by : sanjay swain Friday, August 16, 2013


STARTING 

1.      Check all the turbine lubricating oil sumps for water using the sump
         drain valve and drain as necessary.

2.      Top up the oils to slightly above the working level.

3.      Check and replenish the governor oil levels.

4.      Open the cargo oil pump turbine vacuum condenser inlet and outlet SW
         valves.

5.      Check that the seawater overboard valve is full open.

6.      Open the vacuum condenser cooling seawater pump suction and
         discharge valves.

7.      Start the vacuum cooling seawater pump. Vent any air from the
         condensers.

8.      Open the air ejector condenser inlet and outlet cooling FW valves.

9.      Open all cargo oil pumps lubricating oil cooler inlet and outlet FW
         valves. Cooling water is supplied from the low temperature cooling
         fresh water system.

10.    Start the local cargo oil pump turbine pre-lubricating oil pumps.

11.    Check the oil levels in the lubricating oil sumps. Check that oil pressure
         reaches the priming pressure of 0.3kg/cm

12.    Ensure that the trip cylinders move out and that the trip latch is in a
         position to engage.

13.    Open the cargo oil pump turbine exhaust valves.

14.    Open the vacuum condenser condensate pump suction and discharge
         valves, balance line valves and the condenser recirculation and level
         control valves.

15.    Start one condensate pumps and ensure that the hot well level remains
        normal.

16.    Prepare and warm through the air ejector steam lines.

17.    Open the air ejector condenser drain to the vacuum condenser valves.

18.    Full vacuum will not be achieved until gland steam is supplied to the
        turbines.

19.    Open all the turbine drain valves, steam chest drain valves, individual
        steam line drain valves, low point steam trap valves and drain separator
        steam trap drain valves.

20.    Slowly and carefully open the cargo oil pump main steam stop warming
        through valve.

21.    Warm and drain the steam lines and turbines, closing in the drains as
        necessary.

22.    Warm through and supply gland steam to the turbine gland systems.

23.    If inert gas is required prior to the starting of the cargo pumps open
         the inlet and outlet valves to the main steam dump valve and set the
         boiler to IGS top up mode.

24.     Put the required COP on worm up mode and it will rotate at 200 r.p.m.
         for set time.

25.     Change over the COP control to remote.


STOPPING

1.      Close the cargo oil pump turbine main steam stop valve and close all
         the gland steam valves.

2.      Open all the turbine, line and steam chest drains.

3.      Ensure that all the lubricating oil-priming pumps are running.

4.      Close the cargo oil pump turbine exhaust valves.

5.      If the vacuum condenser is not required for any other service shut down
         the air ejector(s).

6.      Stop the condensate pump. Leave operational in case the condenser hot
         well level rises due to condensation.

7.      Leave the sea water-cooling operating for at least two hours.

8.      When the system has cooled down, close the lubricating oil cooler water
         supply valves.

9.      Leave the lubricating pumps running to reduce corrosion in the turbine
        gearing.


10.   Shut down the fresh water-cooling to the air ejector condenser and
    seawater cooling to the vacuum condenser.

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