DEVICE FOR PURIFICATION OF THE OILY WASTE WATERS Russian patent published in 2007 - IPC C02F1/40 

FIELD: oil-producing industry; devices for purification of the oily waste waters of the oil fields.

SUBSTANCE: the invention is pertaining to the engineering used for purification of the oily waste waters of the oil fields. The device includes of the fitting pipes used for delivery of the source oily waste water, the pressure hydrocyclones with the adjoining from the side of the upper discharges oil-gathering chamber, the fitting pipe with the shutoff valves for the oil withdrawal, the cylindrical chambers of the hydrocyclones lower discharges. In the oil-gathering chamber there are the upper discharges of the hydrocyclones. In the upper part of the extreme two sections of the settler there are the distributing devices supplied with the swirling devices made in the form of the cylinder-conical hydrocyclones and used for the water from the lower discharges of the hydrocyclones and located below the level of the boundary of the "petroleum-water" phases. The settler has the separating partitions dividing the settler into the working sections and the buffer section. The working sections of the settler are supplied with the hydrodynamic coalescing screens, the charge for which is the coarse-grained hydrophobic material. In the upper part of the settler there are the fitting pipes for the oil withdrawal. In the lower part of the working sections there are the fitting pipes for the sediment withdrawal, and in the buffer section the water-gathering device is arranged. The technical result of the invention is the stable high effect of the purification, the high special efficiency, stability of the operation, the extended range of its application.

EFFECT: the invention ensures the stable high effect of the oily waste waters purification, the high special efficiency, stability of the device operation, the extended range of its application.

2 cl, 2 dwg