PURIFIER STARTING AND STOPPING

               STARTING OF PURIFIER

• Open sump tank suction valve to purifier feed pump
• Open inlet/outlet v/vs. of feed pump
• Open inlet/outlet v/vs of heater
• Put feed pump power breaker on
• Open recirculation (by-pass) v/v -which is located after 3way v/v- to purifier outlet line
• Check separator sump oil level
• Be sure separator assembled correctly and check all the connections are correct and tight
• Open main water valve and operating, sealing, displacement water v/vs on the purifier
• Open sludge outlet v/v to sludge tank
• Check the break is released
• Open purifier outlet v/v to sump tank
• Put the separator power breaker on and start the purifier
• Check the starting ampere
• Check the condition of motor, purifier it self and if fitted the drive belt for vibration, abnormal noise or rapid increase temperature
• Wait until separator starting time finish, confirm this time from electronic separator control unit box.
• When purifier is running start the feed pump locally; check pump condition and pressure
• Open manual steam v/v before the heater and steam return v/vs
• Drain heater pneumatic controller for water condensation and then adjust the steam inlet temperature by setting heater controller slowly, gradually (up to 90°C)
• Purge the heater by opening air vent
• Check heater pressure and temperature
• Check the relief v/v for lifting
• Go to purifier control unit box and push the start button to start the operation
• Check the operation sequence
• Adjust input flow rate (throughput) by using the v/v before the 3way v/v. Set it for total separation of sump tank oil in 24 hours.
• Adjust the backpressure of separator by using the v/v outlet side of the separator. (i.e. 1,5 – 2 kg/cm2)
• Try manual disludge for correct operation (opening, closing and changing over the valves of the purifier)
• Check the program timing and if appropriate; open discharge side plug inspection cover and see if any oil is coming out from the outlet.

                                  STOPPING THE PURIFIER

·         Make 3 manual disludges

·         Go to purifier control unit box and stop the operation by pressing stop button.

·         Wait until operation sequence has finish

·         Reduce the steam quantity by EPCON controller. Put it to 40-50°C

·         Confirm that steam control v/v is shut and then shut the manual steam v/v before the steam control v/v. Then shut the steam return v/v

·         Observe oil temperature and confirm temperature is reduced

·         Stop the oil feed pump

·         Stop the idling purifier by pressing stop button on the purifier cabinet.

·         Apply break.

·         Shut operating water v/vs (displacement, sealing, opening - closing v/vs)

·         Shut heater oil inlet/outlet v/vs

·         Shut recirculation v/v to purifier outlet line

·         Shut purifier outlet v/v to sump tank

·         Shut feed pump inlet/outlet v/vs