Alfa Laval PU 100E

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Max Oiltemp
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Alfa Laval PU 100E

Postby Max Oiltemp » Fri Jul 27, 2012 6:05 am

Yet another purifier question -

I'm thinking that I can't see the forest for the trees but has anyone seen this before? No loose carbon in the bowl and the discs are clean. We opened her up due to an increase in um.., vibration :roll: . Why on Earth would it only build up in one section like that?

Thanks, Max


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Re: Alfa Laval PU 100E

Postby The Dieselduck » Fri Jul 27, 2012 7:15 am

A groove, gouge, or scratch in the bowl in that area, over time deposits build there. ? Never seen it before.
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Big Pete
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Re: Alfa Laval PU 100E

Postby Big Pete » Fri Jul 27, 2012 8:32 am

Interesting problem.
Normally I would think that the deposits had built up evenly, then a lump had broken off causing the imbalance, but you found no sign of the missing lump.

Looking at the heavy local deposits the machine must have been far from balanced, hence the vibration, I wouldn't have thought it would have kept running for long that much out of balance. I expect you should change all the vertical and horizontal shaft bearings, before running it again.

Is it possible that the oil feed was blocked and oil was only flowing throught the dirty sector of the bowl?

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Re: Alfa Laval PU 100E

Postby JollyJack » Fri Jul 27, 2012 5:31 pm

Looks like a lump has broken off, you can see the fracture marks on the surface perpendicular to the disc stack, parallel to the vertical axis.
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Re: Alfa Laval PU 100E

Postby Madzng » Sat Jul 28, 2012 5:20 am

I remember at least a couple times when I was fourth that I saw something exactly like this.

The LO purifer (Alfa Laval) woud be shut down for routine overhaul, nothing abnormal with its operation, but when opened up all the solids would be on only one side of the bowl and no obvious signs of lumps broken off.

I never had an camera with me to take pictures and I never did find out how it could end up like that when the bowl was opened. :?

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