In motorships the oil, after passing through main and motion bearings and oil-cooled pistons, etc., is either retained in the bedplate or flows by gravity to a sump tank. In either case, the oil pumps, which may be self￾priming, submerged centrifugal or rotary positive displacement, draw the oil through magnetic strainers and discharge to: filters - oil coolers - engine lubricating and/or cooling manifolds

6.5 Cleaning the Comyn oil/water Separater To clean out the separator ensure that all oil possible has been drawn off through the oil recovery valve and scum valve, and that the separator is full of water. Turn on steam to heating coil; also steaming out connection, and allow the separator to become thoroughly hot

The principle of separation by which all commercially available oil/Water separators is the gravity differential between oil and water. In oily water mixtures, the oil exists as a collection of almost spherical globules of various sizes. The force acting on such a globule causing it to move in the water is proportional to the difference in weight between the oil particle and a particle of water of equal volume. This can be expressed as:

8.1 Function and components of lubrication system 润滑系统的功用与组成 8.2 Lubricants 润滑剂 8.3 Oil pumps 机油泵 8.4 Oil filters 机油滤清器 8.5 Heat transmitters (Oil cooler) 机油冷却器

To ensure good combustion in diesel engines and reduce wear and corrosion in this type of engine it may be necessary to remove certain impurities from fuel and lubricating oils. These include ash, various salts and water present in fuel oil and carbonaceous matter, metals, acids and water present in used lubricating oil. carbonaceous

On 29th March the BALTIC CARRIER, a double-hulled chemical tanker, collided with the TERN, a bulk carrier, off the Danish coast, spilling approximately 2700 tonnes of heavy fuel oil. The oil drifted north-westwards from the collision point and started coming ashore during the afternoon and evening of 29th March. The heaviest concentrations were along the south shores of Farøand Bogø in the sound between the islands of Falster

A leaking oil tanker split in two and sank Tuesday off Spain's northwestern coast, spewing thousands of tonnes of fuel oil into the sea and adding to a growing environmental disaster along one of Europe's most picturesque and wildlife-rich coasts. The two halves of the 26-year-old single-skinned vessel went down in deep

3.3 Batch and continuous lubricating systems For small or medium units without a circulatory lubricating system, the oil is often treated on the batch system. As large a quantity of oil as possible is drained from the engine at intervals and run into a heating tank, the system being replenished with clean oil at the same time

Oil fuel transfer arrangements provide for receiving stations at an upper deck level, port and starboard, furnished with valves, elbows, pressure gauges, filters and relief valves

6.6 Coalescing bed-type oily water separators The coalesce is capable of forming oil globules up to l2 mm diameter and the heavier fuel oils usually form long 'stalagmites' which grow to a considerable size before they are released. Because of the 1ow velocities employed the collected oil can flow past the water screen without becoming re-entrained and carried through into the outlet