Ice breaker (variants), method and system for single-support mooring and servicing ships

• Main Authors: KULIKOV NIKOLAI V, RUKSHA VYACHESLAV V
• Format: Patent
• Language: English
• Published: 11.05.2006
• Subjects: EQUIPMENT FOR SHIPPING; PERFORMING OPERATIONS; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; TRANSPORTING

To ensure the possibility of offshore shipping of a liquid medium, primarily oil, from an onshore tank farm into sea-going tankers in the winter time in the ice conditions by ensuring both mooring to an offshore terminal and single-point mooring of a tanker at any time, without depending on the dominating wind and sea condition, in a direction most convenient for it with the possibility of its roundabout turning, with the subsequent servicing of it by transporting a liquid medium into such a tanker the following transformations have been made: a known ice breaker ( 1 ) is provided with: a diving station ( 5 ) installed on its deck ( 3 ), the said diving station being provided with a diving trunk ( 6 ) made in the hull ( 2 ) of the ice-breaker ( 1 ), a device for the protection of a flexible hose ( 8 ) of an underwater pipeline against ice action, the said device being made, according to the first embodiment, in the form of a cylinder ( 7 ) provided with guides ( 13 ) for moving in a guiding trunk ( 10 ) made in the stern side of the hull ( 2 ). According to the second embodiment the ice-breaker ( 1 ) is provided with a device for the protection of the flexible hose ( 8 ) of the underwater pipeline against ice action, the said device being made in the form of a pontoon ( 15 ) provided with a trunk ( 16 ) for servicing the flexible hose ( 8 ) and installed in the travel position on the deck ( 4 ); a system of single-point mooring and servicing of ships is provided with the ice-breaker ( 1 ), which is claimed as an invention, for ensuring offshore shipping of oil, a mooring line and a hose for transporting a liquid medium are made as a single hose-mooring line ( 28 ); a method of single-point mooring and servicing of ships, primarily tankers ( 9 ) is carried out with the use of the claimed ice-breaker ( 1 ) and the hose-mooring line ( 28 ).