The Design And Realization Of Oil Discharge Monitoring And Controling System

With the development of world shipping, the number of ships also increases rapidly. The discharge of ship oily bilge water is an important factor in causing marine pollution. So the International Maritime Organization has introduced a variety of laws and regulations to stop the discharging of oily bilge water, but some ships still discharge oily oily bilge water directly into the sea because of incomplete monitoring equipment and measurement, leading to marine pollution. Therefore, it is necessary to design a new oil discharge monitoring and controling system based on the latest international conventions and regulations to prevent the sea pollution caused by the diacharge of oily bilge water.Oil discharge monitoring and controling system is an important equipment which controls the operation of ship oil discharge and protects the sea from pollution. Annex I of MARPOL 73/78 makes stringent requirements for the discharge of ship oily bilge water. Marine Environment Protection Committee 49th session has adopted MEPC.107 (49) and MEPC 108 (49) resolutions, proposing the latest new standards and requirements for oil discharge monitoring equipment. New designed oil discharge monitoring system should be able to record the ship's position by the position indicating device, and the monitoring data should be electronically stored for checking.By analyzing the deficiencies of mainstream vessel oil discharge monitoring system, this paper designs a new type of oil discharge monitoring and controling system based on the resolution of IMO. MEPC.107 (49) and IMO. MEPC.108 (49). The oil discharge monitoring system could measure the signals of oil density, ship speed, flow and ship position by sensors, and control the discharge of oily bilge water by computer calculating. The system can collect ship position signal from GPS system, also display, print and store the monitoring data by SD card, meeting the latest national standard GB/ T 12918-2009 "oil tanker oil discharge monitoring system technical conditions" and international convention.