Symptom                        cause                          remedy

1. Reduced cooling                      a) Deposits                  a) Check the heat transfer efficiency.                                                                                surface for deposits and

if any remove them.

 

                                                     b) The flow rates        b) Check that flow rates for                     

                                                       for oil and water are    oil and water are correct.             

                                                       Incorrect.

 

2. Leakage visible on                  a) The plate pack is   a) Tighten the plate pack

the outside of the                           not tightened enough.       further.

plate pack.

                                                     b) The gaskets and b) Replace the gaskets and

                                                      sealing surfaces are   the damaged plates.

                                                      not clean and the

   plates are deformed.

 

                                                     c) Corrosion between c) Replace the gaskets or

                                                        the double gaskets   the plate.

                                                        or in the same area

                                                        of the adjoining plate.

 

3. Fresh water or                         There is a hole in       Remove the lower sea lubricating oil decrease                                         the plate.                 water valve, a pply a test   volumes                                                                               pressure on the o pposite side    in the respective                                                                  and, if liquid flows from the systems.                                                                              side under pressure, replace                       

                                                                                            the faulty plate.

 

 

DISTILLATION SYSTEMS OIL/WATER SEPARATOR.

SEWAGE TREATMENT.INCIRATOR.

WORDS AND EXPRESSIONS

pure evaporation re-condensing boiling process flash process overflow weir seawater feed brine discharge condenser nest shell drain demister heater nest jacket water inlet jacket water outlet alternative steam connections anti-pollution regulations stringent to contain purity legislative requirements monitoring unit continuously alarm unit warning oil collection space filter insert pilot valve coarse (fine) separating compartment catch plate legislation to install waste water inlet chlorine contact aeration settling coarse screen sludge soil ultimate in conjunction with thus waste disposal package

чистый испарение реконденсация процесс кипения процесс мгновенного парообразования переливной патрубок вход забортной воды выход рассола конденсаторный отсек слив из корпуса каплеотбойник отсек подогревателя вход греющей воды выход греющей воды альтернативные паровые соединения правила предупреждения загрязнения жесткий содержать чистота, законодательный требования блок мониторинга постоянно сигнальное устройство предупреждение сборник нефтепродуктов фильтрующий элемент управляющий клапан отсек грубой (тонкой) очистки захватывающая пластина закон устанавливать вход загрязненной воды хлорирование аэрация отстой экран грубой очистки грязь, отстой зд. активный ил максимальный совместно с, в сочетании с таким образом блок (набор) уничтожения отходов

TEXT

DISTILLATION SYSTEMS

Distillation is the production of pure water from sea water by evaporation and condensing. Distilled water is produced either by a boiling or a flash process.

Figure 4.4 Boiling process evaporator.

OIL WATER SEPARATORS

Oily water separators are used for separation of oil from water. While anti-pollution regulations are becoming more and more stringent clean water suitable for discharge must contain less than 15 parts per million of oil. As oil/water separators can achieve 100 parts per million a filter must be also used to provide the required purity. The latest legislative requirements are where 100 parts per million purity is required, a monitoring unit which continuously records, and, where 15 parts per million purity is necessary, an alarm unit to provide warning of levels of discharge in excess of 15 parts per million.

Figure 4.5 Oily water separator.

SEWAGE TREATMENT

To meet certain standards, introduced by International legislation all new ships have sewage treatment plants installed. There are two particular types of sewage treatment plant using either chemical or biological methods.

Figure 4.6 Biological sewage treatment plant,

INCINERATOR

To achieve the ultimate situation of no discharge a suitable incinerator is used in conjunction with a sewage plant and with facilities for burning oil sludges thus forming a complete waste disposal package.