Hi,
This is regarding normal shutdown of a steam turbine.
For one of our steam turbines, for a normal shutdown, once it reaches minimum governor speed, the logic will close the governor valve first to 500 rpm before sending a signal to close the steam inlet valve. And according to the...
We have a boiler feed water pump that consistently fails at the thrust bearing (2-stage, between-bearing, radial split pump, see attached picture). Out of the four pumps operating in parallel, the failure always occurs at the B pump location. Upon examining the failed bearing (back-to-back and...
We have a GE Frame 5 rotor that was damaged 5 years ago. It was sent to GE for re-built. Only low speed balancing and running speed test (casing vibration reading < 2mm/s, no displacement reading taken) was performed after the re-built. The rotor was stored vertically since then.
This year, we...
We have a Sundyne LMV 311 with single seal plan 21, operating in hydrocarbon service. We recently overhauled the pump.
Both port 1 and port 2 drains are extended out of the noise hood and routed to a nearby drain. Port 1 drain length from the pump flange is about 3m while port 2 is about 6m...
