Running Lube during main pump on standby
Running Lube during main pump on standby
(OP)
I have been asked to examine if keeping the lube oil pump running when the main pump itself is on off condition help prevent the corrossion on bearings
Similarily, to keep seal quench running even when pump is on off condition.
Could anyone help to examine this and what are the factors I have to examine here
Thanks
Similarily, to keep seal quench running even when pump is on off condition.
Could anyone help to examine this and what are the factors I have to examine here
Thanks





RE: Running Lube during main pump on standby
Why keep the seal water running when the pump is off?
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)
RE: Running Lube during main pump on standby
RE: Running Lube during main pump on standby
Not precisely clear on the term "seal quench"; however, again in the nuclear field, I know that supplementary cooling water is supplied to reactor coolant pump seals at some nuclear plants in order to keep them from overheating -- whether or not the reactor coolant pumps are running.
The applicability of the above statements to your <unknown> field is, of course, unknown.
Patricia Lougheed
******
Please see FAQ731-376: Eng-Tips.com Forum Policies: Eng-Tips.com Forum Policies for tips on how to make the best use of the Eng-Tips Forums.
RE: Running Lube during main pump on standby
Seal quench is keeping the seals wet, so they don't dry out, lose seal and start leaking.
We are more connected to everyone in the world than we've ever been before, except to the person sitting next to us. Lisa Gansky
RE: Running Lube during main pump on standby
Is the machine in a "standby" mode and required to immediately start if needed? If so then you probably want lube oil and seal quench running (vpl has alluded to this).
Regarding bearing corrosion, warm oil flowing over a bearing could help remove any moisture present in the environment and prevent condensation scenarios.
The seal question depends on application. Is the quench performing a cooling function? Is the quench acting as a barrier?
RE: Running Lube during main pump on standby
Then again, water will sink to the sump if the lube oil pump is off.
We are more connected to everyone in the world than we've ever been before, except to the person sitting next to us. Lisa Gansky