| 摘要 |
PURPOSE:To perform corrosion protection by an anode clue to flow of current when a ballast tank is vacant or halvely filled with ballast water by atomizing and spraying seawater on both the inner wall of the ballast tank and a sacrificed anode member from the sprinkler of a water spray pipe arranged in the ballast tank and forming a water film. CONSTITUTION:Many sacrificed anode members 4 are fitted to the inside of the ballast tank 1 comparted and formed in a hull. This ballast tank 1 is protected from corrosion. In a corrosionproof device, a water spray pipe 5 having many sprinkler nozzles 8 is arranged along the inner wall 2 of the ballast tank 1. When the ballast tank 1 is vacant or halvely filled with ballast water, seawater is atomized and sprayed to both the inner wall 2 of the tank and the sacrificed anode members 4 from the sprinkler nozzles 8 via the water spray pipe 5 and a water film is formed. Thereby corrosionproof current is allowed to flow to the inner wall 2 and the internal member 3 of the ballast tank 1 from the sacrificed anode members 4 to perform corrosion protection. The coated amount of rustproof coating in the inside of the ballast tank 1 is reduced. |
