Flowserve IJ, Установка, эксплуатация и обслуживание

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IJ PUMP OPERATION AND MAINTENANCE MANUAL
BO2660-01 4-4
1. Ensure:
a. hand-operated valves are positioned as required in step 6 of SERVICING EMPTY LUBE
OIL SYSTEM;
b. lube oil reservoir is at level required in CHECKING AND REPLENISHING LUBE OIL
RESERVOIR;
c. inspections required above did not reveal any discrepancies which could not be corrected.
2. Start auxiliary or spare lube oil pump. Verify that lube oil pressure indicator (PI) that is
located downstream of back pressure control valve (PCV) reads the same as in step 5 of
SERVICING EMPTY LUBE OIL SYSTEM above. For further information on back pressure
control valve (PCV) see manufacturer's data in APPENDIX.
3. Start circulation of cooling water to applicable units: heat exchangers, seal housings, and
driver. Verify flow. (To determine cooling systems that are applicable to your pump, see
OUTLINE and PIPING drawings and your plant's data files.)
4. Prime the pump as follows:
CAUTION
To prevent exposing low pressure ends of the casing to a
pressure greater than specified maximum suction pressure
and resulting pump damage, make certain that the suction
valve is always open before starting circulation in the
warm-up circuit, and that it remains open throughout the
warm-up procedure.
a. Open suction valve, allowing pump to begin filling.
NOTE
A vent connection (or line) may not be provided for pumps
with top-mounted suction and discharge nozzles, since
vapors can escape through the nozzles.
b. Open valves in vent line to relieve vapors keeping line open until all vapors escape from
both pump and suction line.
c. Close all drain valves, except any functioning as part of the warm-up circuit.
CAUTION
Never permit reverse warm-up flow to cause rotation of the
rotor. Rotation opposite of the normal direction of rotation
results in loosened nuts on the shaft and possible pump
damage. But if warm-up flow is in the same direction as
normal flow, slow rotation of the shaft is not damaging,
providing that lube oil flow is maintained to the bearings and
turning gear speed is not exceeded.