Liquid purification or separation – Flow – fluid pressure or material level – responsive – Discharge of treated material
Patent
1984-11-05
1986-08-26
Chiesa, Richard L.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Discharge of treated material
210115, 210519, 210540, C02F 140
Patent
active
046081607
ABSTRACT:
A system for separating two immiscible liquids of different specific gravities, such as oil and water. The system includes a gravity separator and oil-contaminated water is continually pumped into the separator tank by a main pump and is impinged against an inclined baffle which directs the water upwardly toward the top of the tank. Larger droplets of oil are collected as a layer in the upper end of the tank, while the effluent is discharged from the lower end of the tank to a coalescer unit, where residual oil is removed from the water. A liquid level sensor is located in the upper end of the separator tank and when the collected layer of oil reaches the level of the sensor, the sensor discontinues operation of the main pump and operates an oil pump to discharge the collected layer of oil from the separator tank to an oil recovery location. The oil collected in the coalescer unit is recirculated and mixed with the oil-contaminated water being introduced into the separator tank.
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Chiesa Richard L.
Nelson Industries Inc.
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