Patent ID: 7678285

Claim:
An oil recover unit ( 1 ) comprising: at least one container ( 5 ) for retrieval of a mixture/emulsion of mainly water ( 3 ) and oil ( 4 ) and for separation of the water ( 3 ) from the oil ( 4 ), at least one inflow ( 6 ), located at a lower part ( 24 ) of the container ( 5 ), configured so that the mixture/emulsion ( 2 ) can be soaked up and under pressure be pressed upwards into the container ( 5 ) using at least one pump ( 8 ) at the same time as the oil ( 4 ), floats upwards in the form of oil particles ( 16 ) in the surrounding water ( 3 ) and creates an oil bed ( 17 ) on the water ( 3 ), whereby on at least one place, where the oil particles ( 16 ) move upwards, somewhere under the oil bed ( 17 ), at least one collecting place ( 9 ) is connected in direct or indirect connection to at least one discharge channel ( 11 ), said collecting place ( 9 ) comprising holes ( 10 ) provided in said discharge channel ( 11 ) or in an upwards directed drainage pipe ( 25 ) movably provided at said discharge channel ( 11 ), and through said discharge channel ( 11 ) the surrounding water ( 3 ) in the mixture/emulsion ( 2 ) is dischargeable from the container ( 5 ), as discharged water ( 13 ), via at least one existing lower discharge ( 14 ) located at the lower part ( 24 ) of the container ( 5 ), at the same time as the oil bed ( 17 ) is dischargeable at an upper part ( 12 ) of the container via at least one existing upper discharge ( 15 ) at the upper part ( 12 ) of the container, and wherein said collecting place ( 9 ) is at lowest arranged in height at a lower level ( 23 ) in the container ( 5 ), which is located in an area where the oil particles ( 16 ) have become so large and that the turbulence in the mixture/emulsion ( 2 ) has decreased so much that they start moving upwards, and said collecting place ( 9 ) is at highest located at an upper level ( 31 ) just below the oil bed ( 17 ), where the oil particles ( 16 ) not vet have been assimilated with the oil bed ( 17 ), whereby within a distance ( 7 ) between the lower and upper level ( 23 , 31 ) the position of said holes ( 10 ) is variable upwards and downward, so that an optimal separation of the water ( 3 ) from the oil ( 4 ) can take place at every moment and at different qualities of the oil ( 4 ) and densities of the water in the mixture/emulsion ( 2 ).