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INNOVATION

Reliability Improvement Of Critical Equipment –

Boiler Feed Pump

How and why was the observed that the hydraulic more than 8 days. So after
problem identified? coupling primary shell both detailed study &analysis of

fusible plugs were damaged. problem it was found that
Boiler Feed Pump (BFP) plays
The damaged fusible plugs foaming was happening due
an important role in feed
were replaced by new to damage of fusible plug.
water cycle. The feed water
fusible plugs & after that
is transferred from deaerator Impact of solution to the
pump trial,no foaming was
to boiler through BFP & BFP business?
observed.
maintains boiler drum water
The downtime to replace the
level. BFP is driven by motor What were the challenges
fusible plug was
& its speed is controlled by encountered?
comparatively lesser and
hydraulic coupling. In U#3
This type of oil foaming the pump was available
BFP-B hydraulic coupling oil
problem is never occurred within 12 hours.
foaming is observed. Due to
earlier in the BFP hydraulic
oil foaming there is chance
coupling. The oil parameters Team Members
for hydraulic coupling failure
were checked & are found
& this will result in pump Mr. Tushar Pande
normal. The same is
outage. Mr. C. Thangakan
discussed with OEM & they
Mr. Arun Paul
How was the problem are suggesting for internal
Mr. Anilkumar Jaiswal
solved? inspection of hydraulic
Mr. Sharad Mathapati
coupling. This will result in
After opening of hydraulic
pump non availability for
coupling top manhole it was

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