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Main Lubricating Oil System  |
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Components of Main Lubricating Oil System: Main Lubricating Oil Pump |
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| Number: | 2 | ||||
| Performance: | acc. to requirements of main engine maker | ||||
| Type: | centrifugal or screw pump, deepwell type *) | ||||
| Speed: | 1.150 1/min. | ||||
| Capacity: | 560 m3/h | ||||
| Head: | 4,7 bar | ||||
Material |
centrifu. pump/screw pump |
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| Casing: | cast iron / cast iron | ||||
| Screws: | - / nitriding steel |
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| Impeller: | cast iron / - | ||||
| Shaft: | stainless steel / - | ||||
| *) acc. to yard's choice | |||||
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| Main Crosshead Lubricating Oil Pump | |||||
| Number: | 2 | ||||
| Performance: | acc. to requirements of main engine maker | ||||
| Type: | screw pump | ||||
| Capacity: | 63 m3/h | ||||
| Head: | 12 bar | ||||
| Material | |||||
| Casing: | cast iron | ||||
| Screws: | nitriding steel | ||||
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| Cylinder Lub. Oil Transfer Pump | |||||
| Number: | |||||
| Type: | gear pump | ||||
| Capacity: | 10 m³/h | ||||
| Head: | 3 bar | ||||
| Material | |||||
| Casing: | cast iron | ||||
| Gears: | nitriding steel | ||||
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| Main Cylinder Lu 1 Transfer Pump A cylinder lubricating oil transfer pump will be provided if the main cylinder lub. oil service tank cannot be filled by gravity. |
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| Main Lubricating Oil Cooler | |||||
| Number: | 1 | ||||
| Type: | plate cooler | ||||
| Performance: | the cooler is laid out to transfer the heat flow of following components
to the coolant: bearings and pistons of main engine at MCR plus preheater for separator. |
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| Medium to be cooled: | lubricating oil | ||||
| Outlet temperature: | 45 °C | ||||
| Capacity: | capacity of main lubricating oil pump | ||||
| Coolant: | low temperature fresh cooling water | ||||
| Inlet temperature: | 36 °C | ||||
| Outlet temperature: | 40 °C | ||||
| Heat flow: | 2.488 kW | ||||
| Material | |||||
| Casing: | steel | ||||
| Plates: | stainless steel | ||||
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| Main Lubricating Oil Discharge Filter | |||||
| Number: | 1 | ||||
| Type: | automatic self-cleaning, with flushback oilfilter and magnetic insert | ||||
| Mesh size: | acc. to main engine maker's requirements | ||||
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| Main Lubricating Oil Bypass Filter | |||||
| Number: | 1 | ||||
| Type: | single filter | ||||
| Mesh size: | acc. to main engine maker's requirements | ||||
| The filter is connected in parallel with the main lubricating oil discharge filter | |||||
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| Main Cylinder Lub. Oil Meter | |||||
| Number: | 1 | ||||
| Arrangement: | in supply line of main cylinder lub. oil service tank. | ||||
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| Main Lubricating Oil Separator | |||||
| Number: | 2 | ||||
| Maker: | Alfa Laval or equal | ||||
| Type: | LOPX 709, automatically self?cleaning | ||||
| Performance: | the separator is laid-out to circulate the calculated amount of the sump tank acc. two times within 24 hours | ||||
| Effective capacity: | 4.800 l/h | ||||
| The main lub. oil separators are connected to: - Main engine sump tank - Used lub. oil tank - Generator diesel's sump tanks Remark Separate lub. oil separator feed pumps provided, electrical motor driven, capacity acc. to separator requirements. |
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| Main Lubricating Oil Separator Preheater | |||||
| Number: | 2 | ||||
| Type: | tube or plate preheater *) | ||||
| Heating: | steam | ||||
| Lubr.oil heating up: | 40 ? 45K | ||||
| Sep.temperature: | 80°C | ||||
| Capacity: | acc. to the effective output of the main lubricating oil separator | ||||
| Material: | steel | ||||
| *) to yard's choice | |||||
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| Lubricating Oil Tanks | |||||
| Main Lubricating Oil Storage Tank | |||||
| Number: | 1 or 2 | ||||
| Performance: | the tank is laid-out for filling of the main engine sump tank, plus 30%. | ||||
| Total Capacity, calcul./actual: | 60 m³ | ||||
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| Main Lubricating Oil Sump Tank | |||||
| Number: | 1 | ||||
| Performance: | volume acc. to main engine maker's requirements | ||||
| Capacity, calcul./actual: | 45 m³ | ||||
| Design: | the tank is arranged in the double bottom and surrounded by cofferdams. Baffle plates, suction and drain sockets are arranged in a way that the total oil quantity is integrated in the circulation. | ||||
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| Main Cylinder Lub. Oil Storage Tank | |||||
| Number: | 1 | ||||
| Performance: | the tank volume is laid-out for main engine's consumption at MCR within 24h | ||||
| Capacity: | 1,5 m³ | ||||
| Remark: The tank is designed as measuring tank. |
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| Tank for Used Lub. Oil | |||||
| Number: | 1 | ||||
| Performance: | the tank is laid-out for the volume of the main engine sump tank. | ||||
| Capacity, calcul./actual: | 45 m³ | ||||
| Remark: The tank can be emptied ashore by the sludge oil pump. |
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| Div. Lub. Oil Tanks | |||||
| Number: | 6 | ||||
| Performance: | |||||
| Capacity: | 300 l each | ||||
| Remark: Each of this tanks will be connected to a common filling line from deck. One tank will be connected to the M.E. Cyl. Lubricators for running-in oil. One of the tanks will be a hydraulic oil tank for the bow thruster. |
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