process control across two separator system
process control across two separator system
(OP)
I am trying to design a control system across 2 oily water separators, tying into dedicated pumps and the outlets of which are tying into a joint header before going into a desanding unit, the problem is the level control d/s of the desander and minimum flow control tie-in. The two options are single level control with a hand switch going back to the two separators and using the control from one or another separator or accepting that during low level there is a possibility of sand getting into the downstream equipment, which includes a plate separator and 6 water injection pumps.
Any suggestions would be gratefully received as to whether anyone has any other ideas on this system.
Cheers Gill
Any suggestions would be gratefully received as to whether anyone has any other ideas on this system.
Cheers Gill





RE: process control across two separator system
Possibly a foolish question but why do you have two oily water seperators, if you only had one the problem would go away, and in my part of the world anyway we dont design 100% redundancy into oily water seperators ( we put bypasses and isolation in, especially since you stated you have plate seperator downstream)) as they dont tend to go wrong, if its a capacity issue, one larger vessel is generally smaller and cheaper than two smaller vessels.
RE: process control across two separator system
Thanks again.