Floating-oil recovery device

A floating-oil recovery device comprising:

• a bubble-curtain generation mechanism configured to discharge air into water to generate a bubble curtain in the water so as to increase a thickness of a film of floating oil while regulating spread of the floating oil, the bubble-curtain generation mechanism comprises an aeration pipe;
• an ejector configured to recover an oil-water mixed fluid having the floating oil and the water mixed with each other by jetting high-velocity water toward the film of floating oil enclosed with the bubble curtain to destroy the film of floating oil, wherein the ejector comprises a nozzle for jetting the high-velocity water and an intake pipe for taking in the high-velocity water jetted through the nozzle, with the nozzle and the intake pipe separated in line via a gap adjusted in accordance with viscosity of the floating oil, so as to generate negative-pressure suction force from around the gap, to recover the oil-water mixed fluid corresponding to an increase thickness within the bubble curtain into the intake pipe;
• a float coupled to the ejector;
• a support frame configured to be attached to a portion of a ship;
• and
• wherein the aeration pipe is arranged on both sides of a bottom portion of the support frame and arranged on a rear side of the bottom portion of the support frame;
• wherein the nozzle and the intake pipe are arranged substantially in a line along the horizontal axis;
• wherein the ejector is supported in a pivotable and rotatable manner at a front side of the support frame;
• wherein the float is arranged at a rear side of the ejector;
• and
• wherein the bubble-curtain generation mechanism is configured to generate the bubble curtain by an ascending flow of a group of bubbles discharged from the aeration pipe arranged on the both sides of the bottom portion of the support frame and on the rear side of the bottom portion of the support frame.