1. Chapter 4. bowl function
Bowl function

2. What happens inside? Operates with the Alcap principle No gravity disc
No level ring
Centrishoot
Complete displacement
Complete ejection
Clean bowl!

3. Activity Snap ring (Centrilock™) O-ring Bowl hood Bowl discs Bowl body
Hood seal/o-ring
O-ring
Top disc
O-ring
Distributor
Operating slide
O-rings
O-ring
Inlet / outlet pipe
Cap nut
Nut
Operating slide holder
Paring tube
Discharge slide
Operating water ring
Seal ring

4. Bowl inlet and outlets
Inlet
Oil outlet
Water outlet

5. question
Which other separator for marine and power use has the oil paring disc inside the top of the disc stack?

6. question
No level ring!
Why has the level ring been removed?

7. question
Why has the water paring disc been replaced by a paring tube?

8. Product flow 1. Alcap Valve V 5 normally closed Conditioning water
2. Oil flow
Inlet
Paring chamber
3.Water / Sludge
4. Paringtube position

9. Inside the bowl at discharge -1
Dirty oil in
Interface / separated sludge
If back pressure increased?
Oil level inwards
Interface outwards
Water level inwards
Paring tube inwards
If back pressure decreased?

10. Inside the bowl at discharge -2
Feed off
Oil level
Water level

11. Inside the bowl at discharge -3
1 - Water outlet closed
2 - Oil outlet closed
opened at pressure increase signal from PT4 in oil outlet.
3 - Oil displaced
Displacement volume based on calibration of water flow at first start-up.

12. Inside the bowl at discharge -4
Displacement continues
Paring tube moves in
Oil column replaced by water - heavier
Complete displacement
Tube flush

13. Inside the bowl at discharge -5
After discharge
Empty bowl

14. Inside the bowl at discharge -6
Conditioning water is added , time is depending on calibration made at first start-up

15. Inside the bowl at discharge -7
After conditioning water
Top disc well covered
Water does not reach disc stack

16. Inside the bowl at discharge -8
Feed on
Water pushed out
Oil does not pass top disk
Bowl in running condition

17. Oil Losses per day 4 lit/disch 0.07 lit/disch 0.5 lit/disch

18. Total Oily water sludge per day
Vol/disch
13 lit/disch
5 lit/disch
6.2 lit/disch
7.4 lit/disch

19. Total Oily water sludge per day
Oil % of total oily water sludge volume

20. Activity
Using your notes, describe sequence at discharge to person next to you!

21. Oil/water back pressure, tube position, Appendix 4
Previous separator models
Increase oil back pressure increases water pressure
FOPX, water indicating pressure increases when recirc holes in heavy phase paring disc become blocked
Separation unit
when oil pressure is increased the water pressure decreases

22. Oil/water back pressure, tube position, Appendix 4
Paring tube
free to move between inner and outer limits

23. Oil/water back pressure, tube position, Appendix 4
Water paring chamber
Low oil back pressure
gives a large diameter water ring

24. Oil/water back pressure, tube position, Appendix 4
Water paring chamber
High oil back pressure
gives a small diameter water ring

25. Oil/water back pressure, tube position, Appendix 4
Paring tube position
large diameter gives high pressure
tube out gives high pressure

26. Oil/water back pressure, tube position, Appendix 4
Paring tube position
small diameter gives low pressure
tube in gives low pressure

27. The operating mechanism
QUESTION, how do we push the operating slide against the bowl body when there are no springs in the bowl?

28. The operating mechanism

29. The operating mechanism

30. The operating mechanism

31. The operating mechanism

32. The operating mechanism

33. The operating mechanism

34. The operating mechanism

35. The operating mechanism

36. The operating mechanism

37. The operating mechanism

38. The operating mechanism

39. The operating mechanism

40. The operating mechanism

41. The operating mechanism

42. The operating mechanism

43. The operating mechanism

44. The operating mechanism