Automatic obturator for a vessel for separating light liquids such as hydrocarbons

摘要

The device has an automatic obturator (9) formed of a float (10) with openings situated relative to a water/light liquid interface. The float acts on an inlet of a water removal system (24) of a tank (1) while closing of the inlet through an obturation unit (15) to retain water. The float in cylindrical form has its lower part constituting the obturation unit in a tapered form. Light liquids penetrate into the float above a maximum depth for making it heavy and for leading it towards the inlet of the removal system, situated near the base of the tank.