ACCUMULATOR UNIT - koomey Unit (BOP CONTROL UNIT) - وحدة التحكم فى صمامات مانع الانفجار
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ACCUMULATOR UNIT - koomey unit
(BOP CONTROL UNIT)
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| 4 way valve |
koomey unit او bop accumulator unit الوحدة المتحكمة في غلق و فتح صمامات مانع الانفجارات المعروفة بإسم ال
iwcf من المهم و فهمها و معرفة اجزائها المختلفة للنجاح في اختبار
ACCUMULATOR UNIT - koomey unit
(BOP CONTROL UNIT)
NOTE: As per IWCF exam is concerned, one needs to remember the name of the parts of the control unit.
1. Customer air supply: normal supply is 125 psi. (Higher may require air regulator.)
2. Air lubricator: on air inlet line to air pumps. Use SAE 10 lubricating oil.
3. Bypass valve: to automatic hydro-pneumatic pressure switch. If pressures higher than normal 3,000 psi are required, open. Close at all other times.
4. Automatic hydro-pneumatic pressure switch: 2,900 psi cut-out with air and electric pumps. 3,000 psi for air pumps alone. Adjustable spring tension control.
5. Air shut-off valves: manual – open/close supply to air hydraulic pumps.
6. Air operated hydraulic pumps: normal operating air pressure is 125 psi.
7. Suction shut-off valve: manual. Normally open. One for each suction line.
8. Suction strainer: one for each suction line. Removable screens.
9. Check valve: one for each air operated hydraulic pump delivery line.
10. Electric motor driven triplex or duplex pump assembly.
11. Automatic hydroelectric pressure switch: pressure switch is set at 3,000 psi cut-out and 250 psi cut-in differential. Adjustable.
12. Electric motor starter (automatic): for motor driving triplex/duplex pump. Works with auto. hydroelectric pressure switch. Manual override on-off switch.
13. Suction shut-off valve: manual, normal open. In suction line of pump.
14. Suction strainer: located in the suction line of the triplex or duplex pump.
15. Check valve: located in the delivery line of the triplex or duplex pump.
16. Accumulator shut-off valve: manual. Normally open when the unit is in operation. Close when testing or skidding rig or applying pressure over 3,000 psi to open side of ram preventers. Open when test is completed.
17. Accumulators: check nitrogen precharge in accumulator system every 30 days. Precharge should be 1,000 psi +/–10%. Caution: use nitrogen when adding to precharge. Other gases and air may cause fire and/or explosion.
18. Accumulator relief valve: valve set to relieve at 3,500 psi.
19. Fluid strainer: located on the inlet side of the pressure reducing and regulating valves. Clean strainer every 30 days.
20. Koomey pressure reducing ad regulating valve: manually operated. Adjust to the required continuous operating pressure of ram type BOPs.
21. Main valve header: 5,000 psi W.P., 2” all welded.
22. 4-way valves: with air cylinder operators for remote operation from control panel. Keep in standard operating mode (open/close), never in center position.
23. Bypass valve: with air cylinder operator for remote operation from control panels. Close position puts pressure on main valve header (21). Open position puts full pressure on header. Keep closed unless 3,000 psi+ required on ram type BOPs.
24. Manifold relief valve: valve set to relieve at 3,500 psi.
25. Hydraulic bleeder valve: manually operated – normally closed. Note: this valve should be kept open when precharging the accumulator bottles.
26. Panel-unit selector: manual 3-way valve. To apply pilot air pressure to air operated Koomey pressure reducing/regulating valve, either from air regulator on unit or from air regulator on remote control panel.
27. Koomey pressure reducing and regulating valve – air operated: reduces accumulator pressure to required annular BOP operating pressure. Pressure can be varied for stripping operations. Maximum recommended operating pressure of annular preventer should not be exceeded.
28. Accumulator pressure gauge.
29. Manifold pressure gauge.
30. Annular preventer pressure gauge.
31. Pneumatic pressure transmitter for accumulator pressure.
32. Pneumatic pressure transmitter for manifold pressure.
33. Pneumatic pressure transmitter for annular preventer pressure.
34. Air filter: located on the supply line to the air regulators.
35. Air regulator, Koomey pressure reducing/regulating valve – air operated.
36. Air regulator for pneumatic transmitter (33) for annular pressure.
37. Air regulator for pneumatic pressure transmitter (31), accumulator pressure.
38. Air regulator for pneumatic pressure transmitter (32), manifold pressure. Controls for transmitters normally set at 15 psi. Increase or decrease air pressure to calibrate panel gauge to hydraulic pressure gauge on unit.
39. Air junction box: connect unit lines to panel lines through air cable.
40. Rig test check valve.
41. Hydraulic fluid fill port.
42. Inspection plug port.
43. Rig test outlet isolator valve: high pressure, manually operated. Close when rig testing – open when test is complete.
44. Rig test relief valve: valve set to relieve at 6,500 psi.
45. Rig test pressure gauge.
46. A. Rig skid outlet and 46.B. Valve header isolator valves: manually operated. Close valve header isolator and open rig skid isolator when rig skidding. Open valve header isolator and close rig skid isolator during normal drilling.
47. Rig skid relief valve; valve set to relieve at 2,500 psi.
48. Rig skid pressure gauge.
49. Accumulator bank isolator valves: manually operated, normally open.
50. Rig skid return: customer’s connection.
51. Rig skid outlet: customer’s connection.
52. Electric power: customer’s connection.
كما هو موضح في الصورة الاولى هناك مجموعة من الأسطوانات التى تزويدها بزيت مضغوط عن طريق مضخة كهربية تعمل
بشكلٍ تلقائي عند إنخفاض الضغط عن ٣٠٠٠ رطل على البوصة المربعة وهناك مجمع صمامات لتحكم في مرور الزيت الهيدروليكي سواء بالاغلاق او الفتح اوفي وضع متعادل او وضع لا عمل block position فقط في rigmove
و بواسطة ال
remote control panel
الموصلة بخطوط ضغط عالي من koomey unit to Bop
و يوجد وحداتان RCP
بجانب الforeman واخرى للحفار driller
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عمرو حجاج
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