Steam Turbine Starting Procedure
Steam Turbine Starting Procedure. 2 remove the blinds of turbine piping. Then start the condensate extraction pump with the air ejector.
Gradually reduce the load to zero. Marked as 1 (pid8551) open bypass of 8 inch block valve crack open and open double block valve 3 inch of hp steam line to the turbine crack open to warm up the line marked as 2. 2 remove the blinds of turbine piping.
Before Starting, Put The Turning Gear In, Open All The Drains, Warm Up The Steam Lines And Crack Open The Throttle Valve Very Slightly.
Gradually reduce the load to zero. Start the sea water circulating pump for the main condenser. In some sets piano wire is also used.
Steam Turbine Centering Procedure :
2 remove the blinds of turbine piping. During startup, there is a steam which enters the hp turbine in the reverse direction from last stages toward the first stages. Start pulling the vacuum on hogger ejector and let it come to 80%.
This Steam Is Called Cooling Steam To.
Prewarming (where applicable), drains, temperature mismatch, acceleration, speed holds, synchronizing, loading, unloading (normal), unloading (emergency) And b) repeating step a) with a stepwise. Allow plenty of time to warm up the turbine.
Engage The Turning Gear And Rotate The Turbines In Each Direction.
Start the auxiliary oil pump, and make certain that the proper pressure is. Marked as 1 (pid8551) open bypass of 8 inch block valve crack open and open double block valve 3 inch of hp steam line to the turbine crack open to warm up the line marked as 2. Check whether all motors (cep , aop, gvc , etc ) are working i.e in on condition.
Open The Steam Valve Of After Condenser Ejector;
Open the steam valve of inter condenser ejector; Then start the condensate extraction pump with the air ejector. Centering is done by putting a dummy shaft in place of actual turbine rotor.
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