Page 380 - Subyek Teknik Mesin - Forsthoffers Best Practice Handbook for Rotating Machinery by William E Forsthoffer

Lube, Seal and Control Oil System Best Practices Be st Practice 7.4

Best
Best
Best Practice 7.4Practice 7.4Practice 7.4
Fill oil console baseplates with cement for mass after Lessons Learned
checking for pipe stress and soft foot on pumps and Horizontal oil console support member vibration, when
drivers, to ensure maximum pump, driver and instrument the baseplate has not been filled with cement, will affect
reliability. pump, driver, other component and instrument reliability
Horizontal oil console baseplates (the oil console design prefer- and can cause unscheduled shutdowns of critical
ence) do not completely support all components, and do not prevent equipment.
support member vibration, which affects component and instrument
Low pump bearing, driver bearing and pump seal MTBFs can result
reliability.
from baseplate vibration. In addition, critical equipment console trips
Filling the console support frame completely with concrete will
have been caused by auxiliary pump start switch damage, resulting
provide a firm, vibration-free support, and will optimize the MTBF of all
from baseplate vibration, that prevented the auxiliary pump from
components and instruments. Ensure that all piping alignment and soft
starting when required.
foot checks, and any corrective action to them, are complete before
filling the console baseplate. Benchmarks
If the grout holes provided for perimeter grouting of the baseplate
are not sufficient for filling all compartments, burn or cut additional This best practice has been used since the early 1980s, when I was
involved with a large petrochemical construction project. Its use has
holes in the cover plate for access to each compartment of the console resulted in trouble-free oil console start-up and operation and oil
baseplate.
systems of the highest reliability.
B.P. 7.4. Supporting Material

Console construction

Auxiliary equipment consoles or modules house most of the
components present in the auxiliary systems. Their con-
struction should be reviewed to ensure proper stiffness and
facilities for installation on site. Many horizontal consoles are
constructed in a flexible manner that can result in bending or
excessive pipe strains introduced into components during
shipment and at installation. It is suggested that full length
cross members be positioned as a minimum under pumps, Fig 7.4.1 Console baseplate construction (Courtesy of Fluid Systems)
coolers and filters on the equipment baseplate (see
Figure 7.4.1).
If the baseplate is to be grouted in the field, grout and vent
holes should be specified and reviewed for accessibility to pore
grout when equipment is installed on the baseplate. In addition, grouting, the entire baseplate be filled with cement for added
it is strongly recommended that after perimeter and support support rigidity.

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