| 摘要 |
The present invention relates to a ballast tank freezing preventing structure using a double bulkhead. The purpose of the present invention is to prevent the freezing of a ballast tank in a ship which sails in polar regions only with a simple structural change such as a double bulkhead by blocking the inflow of outside cold air using the double bulkhead. In particular, the ballast tank freezing preventing structure can maintain the temperature of the ballast tank in the ship above the freezing point using waste heat of combustion gas emitted from an engine combustion chamber in the ship without an additional heating device. In addition, the ballast tank freezing preventing structure can efficiently use the waste heat of the combustion gas by dividing the double bulkhead into multiple spaces and controlling the combustion gas supplied to each of the multiple divided spaces according to the temperature inside the double bulkhead, the temperature inside the ballast tank, and the height of the seawater. Therefore, the ballast tank freezing preventing structure can improve the reliability and competitiveness of the ship and cargo transportation fields and, especially, of ships which sail in polar regions. |
