Marine Lubrication Oil Separator - Marine Oil Separator - Hi-sea

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Marine Lubrication Oil Separator

Marine Lubrication Oil Separator

1. Marine Lubrication Oil Separator Application
The high-speed centrifugal separator is intended for marine and land applications. It is specifically designed for cleaning of mineral oils from water and solid particles (sludge). The cleaned oil is discharged continuously, while the sludge is discharged at intervals.
The separator handles the following types of lubricating oils and low viscosity fuel oils:
Distillate  (viscosity 1.5-5.5 cSt/40℃)
Marine diesel oil  (viscosity l3 cSt/40℃)
Intermediate fuel oil and heavy fuel oil  (viscosity 30-380 cSt/50℃)
Lubricating oil of R & O type, detergent or steam turbine.
The separator can be operated either as a purifier or as a clarifier. When operated as a purifier the separator discharges the separated water continuously.
When the oil contains only small amounts of water the separator is operated as a clarifier, discharging the water together with the solid particles.
The separator has to be installed together with devices for control of its operation.
2. Marine Lubrication Oil Separator Outline of Function
The separation process takes place in the rotating bowl. Unseparated oil is fed into the bowl through the inlet. The oil is cleaned in the bowl and leaves the separator through the outlet via a paring chamber. Impurities heavier than the oil are collected in the sludge space at the bowl periphery and removed automatically at regular intervals.
There are no contacting surfaces between process rotating parts and stationary parts (inlet, outlet, feed devices), and the interfacing surfaces are not sealed. As the separation process is carefully balanced regarding pressures and fluid levels, any leakages will not occur as long as the correct running conditions are maintained.
3. Marine Lubrication Oil Separator Technical Parameter
The technical parameter is optional, we can accommodate your requirements, please don’t hesitate to contact us!

Maximum density

feed

sediment

1100kg/m³

2332kg/m³

Power consumption

idling

0.9 kW

running (at max. capacity)

2.0 kW

max. power consumption

2.8 kW (at starting-up)

Bowl speed,

synchronous

9512/9307

rev/min. 50Hz/60Hz

Motor speed, synchronous

3000/3600

rev/min. 50Hz/60Hz

Gear ratio (pulleys)

130:41 (50 Hz)

106:41 (60 Hz)

Starting time

3.5 – 4.5 minutes

Stopping time

Running down without brake

average 19 minutes

With brake

min. 3 max. 4 minutes

Maximum running time without

Empty bowl

180 minutes

flow

Filled bowl

180 minutes

Sludge volume total/efficient

1.0 / 0.3 litres

Bowl liquid volume

2.2 litre

Bowl inner diameter, max

218 mm

Fixed discharge volume

1.2 + 0.1 litres

Lubricating oil volume

0.5 litre

Sound pressure level

75 dB(A)

Sound power

8.9 Bel(A)

Vibration level

New separator

Max. 5.6 mm/sec

Separator in use

Max. 9 mm/sec

Weight

Separator without motor

Net weight approx. 193 kg

Motor

21 kg

Complete bowl

37 kg

Motor power

3 Kw

4. Separation Principle and Separation Device of Marine Lubrication Oil Separator
The separator makes the oil, water or mechanical impurity of the compound with different specific gravity get different centrifugal force under the effect of centrifugal force field to complete the separation through high-speed rotation of the separation cylinder.
(1) Purification device
The purification plant is also called water diversion device which will generate three phases of oil, water and separation impurity. During operation, when the piston is sealed, the separation cylinder must be injected with water to form a water seal layer. The dirty oil runs into the separation cylinder through the hole at the bevel of the reel end, and a part of seal water is drained out, and then the pressure balance of the two different liquids with different density in the centrifugal force field is reached.
Then the dirty oil runs into the space between the discs through the hole on the bevel of the reel end, and is separated under the centrifugal force. The light oil flows to the center along the external surface of the disc, and is output by the centripetal pump. The heavy water and solid particle move outwards along the inner surface of the disc, continuously replacing the water of the water seal will enable the water to be thrown out from the caliber of the gravity ring and to be drained out from the sewage port.
After passing through the water seal layer, small amount of solid impurity will be taken away by the water, large amount of it will gather on the wall of the impurity basket and after waited for the machine stops by taking out a dregs basket row of dregs artificially.
(2) Clarification system
Clarifying system is also called impurity diversion device which will generate two phases of oil and impurity respectively after separation. During operation, the build-in impurity baffle ring of the ring channel on the coping of the disc will block the water outlet. So during impurity-diverting, water mustn’t be injected in for sealing, otherwise the separation effect will be affected, and great amount of oil spill will appear and the separating will be interrupted.
During impurity-diverting, only in the caliber of the gravity ring there is no water being thrown out, while the separation principle of the clean oil and impurity is identical with that of the purification device. Clean water is also output from the centripetal pump. After waited for the machine stops by taking out a dregs basket row of dregs artificially.
5. Certificates of Marine Lubrication Oil Separator: CCS, BV.


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