| 摘要 |
The invention relates to an oil recovery vessel 1 comprising a floating hull structure 2 with at least one internal cavity 3, pump means 5 to pump water in and out of the cavity 3 from a point adjacent the bottom of the hull structure, to lower and raise the freeboard of the hull structure, an aperture 7 in the hull structure which can be raised and lowered above and below the ambient waterline by lowering and raising the freeboard of the hull structure, a weir 8 adjacent the aperture having height adjustment means controlled by the level of fluid in the internal cavity, the weir moving from a low position to a high position causing the aperture 7 to be sealed, and a discharge outlet 10 for removing fluid from the cavity. In use the vessel can float on water with oil on its surface. The oil is brought into the cavity through the aperture with the oil retained in the cavity being removed through the discharge outlet. |
