SU1187840A1 - Apparatus for dehydration and cleaning of oil from mechanical admixtures - Google Patents

Abstract

DEVICE FOR WASHING AND CLEANING OIL FROM MECHANICAL: FIRST IMPURITIES, including a horizontal cylindrical tank, inside which is installed a positive grounded electrode and a negative electrode, made in the form of a metal grid, in the nodes of which are placed needles, and a water collector placed in the bottom of the tank, distinguished by that, in order to reduce the metal consumption of the device and increase the efficiency of dehydration and purification of oil with a high content of mechanical impurities, the positive electrode is made in the form of placed in the upper part of the tank horizontal perforated pipes connected by a pipeline and a pump with a water tank. 15 (L i L

Description

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one

FIG. one

The invention relates to devices for cleaning emulsion water and particulate matter particles using an electric field in oil fields and petrochemical plants.

The aim of the invention is to reduce the metal capacity of the device and increase the efficiency of dewatering and refining of oil with high content of mechanical impurities.

FIG. 1 shows the proposed device, the cut; in fig. 2 is a section A-A in FIG. one.

The device includes a horizontal cylindrical tank 1 with a pipe 2, an oil inlet, a pipe 3, a cleaned and dehydrated oil outlet and a water tank 4. Inside the vessel 1 are a negative electrode 5 sequentially arranged in the form of a metal grid, in the nodes of which needles are placed, and a positive grounded electrode 6 made in the form of horizontal perforated pipes 7, placed in the upper part of the tank 1 and connected by pipelines 8 and 9 through the pump 10 with a sump 4. Pipeline 9 is equipped with a filter 11 and a pipe ohm water discharge 12. A negative electrode 5 is mounted on the insulators 13 and connected via a passage insulator 14 to the negative pole of the current source. The container body 1 and the perforated pipes 7 are grounded. To eliminate the influence of the electric field on the streams of flowing water in the initial part of the pipes 7 along the flow, an earthed network 15 can be installed.

The device works as follows.

Oil containing globules of water and particles of mechanical impurities is supplied to tank 1 through pipe 2, where the passage through the negative electrode 5, the globules of water and particles of impurities acquire electric charge due to electrification of oil near the needles of electrode 5. Next, the charged globules and particles pass t with oil flow

under the perforated pipes 7, from which a multitude of water streams flows through the pipeline 8 by the pump 10, which pumps the water from the water collector 4 through the pipeline 9. The water streams form a developed settling surface, i.e.

form a collecting electrode 6. Charged water globules and particles of impurities are attracted to grounded streams of water and get into the water collector 4 with the water. Further, water containing particles

impurities, passes through the filter 11, where the particles are separated from the water and supplied by the pump 10 to the perforated pipes 7. Excessive water that falls out of the oil as it accumulates is discharged through the pipe 12.

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Claims (1)

DEVICE FOR DEWATING AND CLEANING OIL FROM MECHANICAL IMPURITIES, including a horizontal cylindrical container, inside of which there is a positive grounded electrode and a negative electrode made in the form of a metal grid, in the nodes of which are placed needles, and a water collector located in the lower part of the tank, characterized in that , in order to reduce the metal consumption of the device and increase the efficiency of dehydration and refining of oil with a high content of solids, the positive electrode is made in the form of horizontal perforated pipes connected in the upper part of the tank, connected by a pipeline and a pump to a water collector. FIG. 1