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neelam696
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Join Date: Mar 2014
Posts: 2

BFP Thrust Bearing Seized!

02/17/2015 9:40 AM

Why BFP thrust bearing seized? Is there any relation between boiler drum/ de-aerator fluctuation with BFP? Our 2 BFP's (sulzer , MC 80/13 pumps in 80TPH Boiler) thrust bearings damaged recently.
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RAMConsult
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#1

Re: BFP Thrust Bearing Seized!

02/17/2015 11:35 AM

Those are expensive pumps, one would think that Sulzer has the most experience with them and would be in the best position to answer your question.

Somehow I don't think that you're telling us everything that lead up to the failure. Things like what were the conditions during the "fluctuation", was there any severe water hammer in the lines, did the pump run dry, was it subjected to uneven rapid pressure/flow transients. etc., etc. It's highly unlikely that two identical pumps would simultaneously fail identically, far too improbable.

Call Sulzer and let us know what they said after inspecting the damage.

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lyn
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#2

Re: BFP Thrust Bearing Seized!

02/17/2015 11:36 AM

What does the operator's manual say about this?

What did your equipment technician say about this?

What did the BFP customer service rep. say about this?

What did the BFP technician say about this?

How about some particulars?

Age?

Maintenance records?

Trouble shooting steps taken?

What have you done?
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

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#3

Re: BFP Thrust Bearing Seized!

02/17/2015 4:52 PM

It is not possible to do this without having been there during the lead-up time to the incident and having access to the user manual and maintenance records for the equipment and its utilities.

The equipment supplier may be able to offer some insight over the telephone, perhaps, and will certainly be able to quote for parts and fitting. Do let the forum know how the refurbishment went.

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Muhammad Bilal Bhatti
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Join Date: Jan 2015
Posts: 31
#4

Re: BFP Thrust Bearing Seized!

02/18/2015 1:07 AM

My Friend, I think your problem does not relate with the fluctuation in boiler drum/de-aerator.It is due to the excessive shaft displacement.Pl check it with dial if more then normal then give extra ring(opposite to the drive end) inorder to stop the thrust.

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jack of all trades
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#5

Re: BFP Thrust Bearing Seized!

02/18/2015 1:27 PM

I don't know. Lack of maintenance perhaps?

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jack of all trades (1); lyn (1); Muhammad Bilal Bhatti (1); PWSlack (1); RAMConsult (1)

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