Swimming tub e.g. for collecting mineral oil from water surface after tanker accidents, has high ranking flap and floats with hydraulic cylinder pressed downwards

摘要

The tub has a high ranking flap and floats off a hydraulic cylinder pressed downwards. The equipment stores oil and water mixture within the tub where a hydrostatic positive pressure in the tub opens a valve. Sensors controlled by an electronic circuit control the emptying of water by the pump and the valve is closed afterwards.