Method to utilize a ship in a novel way and a multi-purpose ship
AssigneeArctia Shipping OY
InventorsLars Snellman, Kai Valtari, Hanna Suutarla
Life of this patent
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Abstract
A method to utilize an ice-breaker (10) in a novel way such that tanks of the anti-roll system and/or tanks (21, 22, 23 and 24) of the heeling system are used for recovering and/or processing oil (16) to be recovered from water. The oil is separated from water in a tank of the anti-roll system and/or a tank (21) of the heeling system of the ice-breaker, which tank contains warm water (15) and steam heat pipes (19). The tanks of the anti-roll system and/or tanks of the heeling system of the ice-breaker have separate oil recovery piping which is used when the heeling tanks of the ice-breaker are used for responding to an oil spill.
Claims9
A method for recovering and/or processing oil to be recovered from water, which method comprises:
- providing an ice-breaker or ice-breaking vessel, the ice-breaker or ice-breaking vessel having a single hull, an anti-roll system and/or a heeling system including one or more pairs of tanks located inside said hull on opposite sides thereof, a first set of connecting pipes for transferring water and air between tanks of the anti-roll system and/or a heeling system, and one or more water pumps connected to the water pipes between the tanks of the anti-roll system and/or a heeling system for pumping water from one tank into another to heel the vessel;
- installing a parallel oil piping system and valves and oil pumps suitable for the recovery, separation and transfer of oil between the tanks of the anti-roll system and/or of the heeling system;
- closing the first set of connecting pipes and the one or more water pumps connected to the water pipes between the tanks of the anti-roll system and/or a heeling system;
- and
- collecting the oil to be recovered from water by an oil recovery apparatus and pumping the oil by means of the parallel oil piping system and oil pumps into tanks of the anti-roll system and/or tanks of the heeling system.
An ice-breaker or an ice-breaking vessel to be used for both ice-breaking purposes and for recovering and/or processing oil to be recovered from water, the ice-breaker or an ice-breaking vessel having a single hull and comprising:
- an anti-roll system and/or a heeling system including one or more pairs of tanks located inside said hull on opposite sides thereof;
- a first set of connecting pipes for transferring water and air between tanks of the anti-roll system and/or a heeling system, and one or more water pumps connected to the water pipes between the tanks of the anti-roll system and/or a heeling system for pumping water from one tank into another to heel the vessel;
- a parallel oil piping system and valves and oil pumps suitable for the recovery, separation and transfer of oil between the tanks of the anti-roll system and/or of the heeling system and connected to the tanks of the anti-roll system and/or of the heeling system;
- closing means or blind flanges for closing the water pumps and the water pipes connecting the tanks of anti-roll system and/or heeling system when the ice-breaker or an ice-breaking vessel is used for recovering and/or processing oil to be recovered from water;
- and
- an oil recovery apparatus for collecting the oil to be recovered from water and pumping the oil via the parallel oil piping system and oil pumps into tanks of the anti-roll system and/or tanks of the heeling system.
Dependencies are inferred from the claim text.