BLAST SYSTEM FOR A SHIP, CAPABLE OF PREVENTING MARINE POLLUTION BY OPENING A DOOR OF A BALLAST TANK DURING THE MOTION OF THE SHIP

摘要

PURPOSE: A blast system for a ship is provided to simplify the structure of a seawater discharge pump due to using a pump installed inside a ship.;CONSTITUTION: A blast system for a ship comprises a ballast tank(30), a drainage pump(20), a first conduit(12), a second conduit(14), and a first and a second flow metering valves(13,15). The ballast tank is formed at the base part of the ship, and comprises a door for the inflow and outflow of the seawater. The drainage pump discharges the seawater inside the ballast tank to the outside of the ship. The first conduit transfers the seawater from the ballast tank to the drainage pump. The second conduit lets the seawater to flow out from the drainage pump to the outside of the ship. The first and second flow metering valves are installed in the first conduit and the second conduit, respectively.;COPYRIGHT KIPO 2010