Oil Problem on Screw Compressor
Oil Problem on Screw Compressor
(OP)
Hello all..
I have some troubles with screw compressor at my plant.
FYI, spesification of the compressor :
Gea screw compressor
Type : ZR-Z48S-28
I have problem with oil system. When I turn the compressor on, the oil level always going down until 0 level and it never come back to the oil tank.
And when the operator have checked the economizer, they could drained at about 200 lt of oil which means that the oil come together with NH3 to the system. Then, I checked the coalescer and it is clean (I also attach photo).
I want to ask how can this happen?
What should I do to finish this problem?
Thank You..
I have some troubles with screw compressor at my plant.
FYI, spesification of the compressor :
Gea screw compressor
Type : ZR-Z48S-28
I have problem with oil system. When I turn the compressor on, the oil level always going down until 0 level and it never come back to the oil tank.
And when the operator have checked the economizer, they could drained at about 200 lt of oil which means that the oil come together with NH3 to the system. Then, I checked the coalescer and it is clean (I also attach photo).
I want to ask how can this happen?
What should I do to finish this problem?
Thank You..





RE: Oil Problem on Screw Compressor
RE: Oil Problem on Screw Compressor
Has this compressor train successfully run in the past? Did some event occur that corresponds to the change in oil carry over?
RE: Oil Problem on Screw Compressor
If I take a look by the physical appearance, there are nothing wrong with the coalescing elements. It never successfully run in the past, this problem still occur since the project has finished last year. Should I pull out the coalescing elements and inspect it to verify condition?
RE: Oil Problem on Screw Compressor
We identified cause for recent oil carry over on flooded screw machine train was resolved after finding coalescing element damage and separation allowing oil to bypass the element.
RE: Oil Problem on Screw Compressor
a) Is there a recycle PRV on a lube oil pump that is set too low or maybe malfunctioning ?
b) The type of lube oil used should be immiscible with NH3