Alfa Laval MMPX 303SGP-11, Руководство пользователя

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4.1 Operating routine 4 Operating Instructions
38
5. Check the current to the separator motor to
ensure that the separator has reached full
speed:
During start, the current reaches a peak and
then slowly drops to a low and stable value.
For normal length of the start-up period see
‘‘8.1 Technical data” on page 138.
6. For purification:
a. Supply water to form the water-seal. The
water should have the same temperature
as the process liquid and be supplied
quickly.
b. Close the water feed when water flows
out through the water outlet.
c. Start the oil feed slowly to avoid breaking
the water seal. Then fill the bowl as
quickly as possible.
7. For clarification:
a. Start the oil feed with full flow. Fill the
bowl as quickly as possible.
8. For both purification and clarification
modes:
Check the separator inlet and outlet
pressures. See recommended values in your
system documentation.
9. Adjust to desired throughput.
4.1.6 Separation
Do regular checks on:
•
oil inlet temperature (if applicable)
•
water collecting tank level (if applicable)
•
sound/vibration of the separator
•
back pressure
•
motor current.
4.1.7 Stopping procedure
S
000
96
21
Current increases during start...
S
0
00
963
1
... to decrease to a stable value when full speed has
been reached
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