08 Lubrication Oil System in E/R

Course 2004

Slide 2

� Purpose of the rules and regulations;

Lubrication Oil System - E/R

� To achieve safe and reliable lubrication of engines and turbines.

� To achieve safe and reliable stern tube lubrication

Slide 3

Lubrication Oil System - E/R

� Fire hazard - Piping design- Quick closing valves

� Supply to M/E - Redundant filtering devices or by-pass options- Emergency supply for machinery with long roll-out times (e.g. turbines)- LO separator required for HFO plants

Slide 4

Lubrication Oil System - E/R

h General requirements:

A valve with hand wheel is to be fitted between the M/E crankcase and the double bottom tank.

− If double bottom is required in the E/R and lubricating oil tank extend to the bottom plating

Slide 5

Lubrication Oil System - E/R

For diesel engines burning residual oil fuel, cleaning of the lube oil by purifiers are to be arranged in addition.

h Lubricating oil pretreatment arrangement:

− In systems where lube oil circulates under pressure

Efficient filtering is to be arranged.

For non-redundant units it must be possible to clean the filters without interrupting the oil supply.

If automatic cleaning filters are used, a bypass is to be arranged.

Slide 6

Lubrication Oil System - E/R

Each auxiliary engine or turbine is to be supplied with at least one

lubricating pump.

h Lubricating oil supply:

Sufficient capacity for the maximum output of the engine.

Slide 7

Lubrication Oil System - E/R

− Valves on lubricating tanks above the double bottom and which are open during normal service.

h Remote shut-off arrangement:

Valves located below top of the tank or overflow outlet.

The valves are to arranged for remote shut-off.

− The above requirement may be exempted from for small tanks (I.e. less than 0.5m3)

For tanks for which an unintended closing of the valves may result in loss of main function.

AND

AND

Slide 8

Lub. Oil System for M/E Service

PUMP STATION CYL.OIL

BOOSTER UNIT

MIST VENT BOX

IN E/R CASING

CYL.OIL

STRORAGE TK

MAIN L.O SUMP. TANK

MAIN ENGINE

MAIN L.O PUMPS

AUTO BACK FLUSHING

L.O FILTER

MAIN L.O

COOLER

MANUAL BY-PASS

FILTER

FLAME

SCREEN

SCAVENGE

AIR DRAIN TK

Slide 9

Lub.Oil System for G/E & Purifying

Slide 10

Stern Tube Lubricating Arrangement

With TMON: Sampling point needed

Slide 11

C.O.P.T L.O System

CARGO OIL PUMP

STEAM TURBINE

GAUGE BOARD

GROUP BOARD

PI

PIPI

PI

TISTISTISTIS

PS

PS

PS

CARGO OIL PUMP

STEAM TURBINE

GAUGE BOARD

GROUP BOARD

PI

PIPI

PI

TISTISTISTIS

PS

PS

PS

CARGO OIL PUMP

STEAM TURBINE

GAUGE BOARD

GROUP BOARD

PI

PIPI

PI

TISTISTISTIS

PS

PS

PS

CARGO OIL PUMP

STEAM TURBINE

GAUGE BOARD

GROUP BOARD

PI

PIPI

PI

TISTISTISTIS

PS

PS

PS

TO SLUDGE P/P

TURBINE L.O

STORAGE TK

UPPER DK

Slide 12

Cylinder Oil Service Tank

Slide 13

Lub Oil Tank Bulkhead

Slide 14

Main LO System

Slide 15

L.O Auto filter

Filtration

Slide 16

Gear Pump

Gear Pump

gear

gear

relief valve

SUCTION

DISCHARGE

Slide 17

Gear Pump

Slide 18

Gear Pump

� The gear pump is well suited for handling viscous fluids such as fuel and lubricating oils.

� Consists of two spur gears meshing together and revolving in opposite directions within a casing.

� Any liquid that fills the space bounded by two successive gear teeth mesh with the case must flow along with the teeth as they revolve.

Slide 19

Screw Pump

• Screw pump consists of two screws that mesh with close clearances, mounted on two parallel shafts.

• The screws rotate in closely fitting duplex cylinders that have overlapping bores.

Slide 20

Screw pump

Power rotor

Idle rotors

Slide 21

Screw Pump

Slide 22

Plate type Heat Exchanger

� The plate heat exchanger consists of a pack of corrugated metal plates with portholes for the passage of the two fluids between which heat transfer will take place.

� The plate pack is assembled between a frame plate and a pressure plate and compressed by tightening bolts.

Slide 23

Plate type heat exchanger

Plate type

Slide 24

Plate type heat exchanger

Slide 25

� References;

Lubrication Oil System - E/R

- DNV Rules for Ships Pt.4 Ch.6 Sec.5C

- SOLAS 2000 Amendments Ch.II-2 Reg.4

- SOLAS 1974 as amended Ch.II-1 Reg.26