SU764699A1 - Apparatus for dehydrating hydrocarbon media - Google Patents

Description

 .

The invention relates to a device for the dehydration of the hydrocarbon environment and can be used in the oil and petrochemical industry.

A device for oil dehydration is known, which contains a tank, in the lower part of which two distributors are mounted in the form of troughs, perforated on the sides, tilted up with doniaks, to supply fl.

The closest proposed hydrocarbon dewatering device consists of a tank in which two chambers with oppositely charged electrodes and a vertical mixing tube 23 are installed.

A disadvantage of the known device is that the electrodes have an insufficiently large contact surface to inform the south of a greater number of emulsion particles of the corresponding electrical charges. In addition, E11-particles, which receive the same charge with each electrode, are repelled from its surface not in the direction of the main flow of the medium, but in different directions. Indicated

Features adversely affect the performance of the device.

Another disadvantage of this device is the uneven distribution of the treated medium as it passes through the water accumulating in the bottom of the device. When the tube leaves the holes in the walls of the mixer. The medium travels a certain distance in the horizontal direction, and then turns and passes through the water layer, moving in the vertical direction and seeping not through the entire volume of water, but only through some of its sections and thin uniform trickle. mi, and exhaust.

The purpose of the invention is to increase the efficiency of the process by increasing the contact capacity and uniformity of the distribution of the treated medium.

To achieve this goal

25. Electrodes are made in the form of hollow.

truncated semi-cones with a stepped side surface, the device is equipped with perforated partitions attached to the steps

30 half-cones, dielectric insert, placed between the electrodes, distribution chamber with a perforated lid installed under the mixing tube.

Fig. 1 schematically shows a device for dehydrating a hydrocarbon medium, a longitudinal section; in fig. section aa in figure 1; in fig. 3 - section bb in fig. 1.

The device for locating without reviving the hydrocarbon medium contains a tank 1 with a detachable lid 2. Inside the tank 1 are placed electrodes 3 of different polarities, made of sheet steel in the form of hollow truncated many stepped half-cones, the steps of which are divided by partitions 4 forming channel 5,. communicating with each other through holes b, made in partitions 4. Electrodes 3 are attached by means of strips (flanges) 7 to dielectric insert 8, forming an electrode cone-shaped chamber. Covers 9, closing the top of the electrode chamber,

flanged edges are attached to the upper part of the insert 8, and semicircular edges to the electrode 3. At the periphery of the covers 9 are made using trough-shaped profiles, curved, arcuate distribution channels 10 with a plurality of holes 11 in their lower parts for uniform distribution of the medium, supplied to the electrodes. The arcuate curved profiles are attached to the covers 9, in which the mountains: holes are made to distribute the medium. In the central protruding part of the insert 8 a vertically arranged feed pipe is mounted on the thread. 12, which is hydraulically connected to the channels 14 located on the covers 9, which is hydraulically connected with the nut 13 to supply medium. parts of the distribution channels 10. For removal of the processed medium in the upper part of the tank 1, a collector 15 is installed coaxially, which is a vertically arranged pipe connected by radially arranged branch pipes with an annular pipe. Ring pipe and nozzles are perforated on the sides. The supply pipe 12 passes through the central pipe of the collector 15 and is sealed in it with a nut 16. A discharge pipe 17 is attached to the central pipe of the collector 15. The lower part of the electrode chamber is mounted into a vertically positioned mixture 18T of Electroconductive material, to the other end which is attached a distribution chamber 19 of non-electric (1X) conductive material, or of metal, lined inside with a dielectric, such as enamel. An upper part (r) of the entwined part (lid) of the chamber 19 is perforated for the uniform removal of the treated ere

dy thin streams. The lower part of the chamber 19 is provided with a nozzle 20 for draining water in case of its occurrence in the chamber. The pipe 21 in the bottom bottom of the column 1 is designed to drain the excess water accumulating in the tank 51.

The device works as follows.

The electrodes 3 are supplied with a constant voltage of different potentials.

0 Hydrocarbon medium enters pipe 12 into channels 14 and distribution channels 10. Through holes 11, the medium enters electrodes 3, flowing from stage to stage through b holes in partitions 4. The shape of electrodes 3 ensures good contact of electrode surfaces with medium and repulsion of particles emulsions that received a charge corresponding to each electrode,

 mainly in the direction of each of the main flows of the medium. This contributes to the concentration of differently charged particles of the emulsion. At the place of their meeting when the flow flows in opposite directions5 Hfeix flows, and consequently, to a significant reduction in the distances between their more intense attraction.

As a result of intense attraction, E1mulBsi particles are combined into larger droplets capable of escaping from the hydrocarbon medium.

From the electrode chamber, the medium passes through pipe 18 and enters distribution chamber 19, from where it exits through a plurality of holes to the top. In this part of the chamber 19 and passes in the form of many small streams through the water column in the lower part of the tank 1, where the enlarged drops are trapped

 water, while the less dense hydrocarbon medium rises up and is discharged through the collector of the 15th discharge pipe 17 to the appropriate container. The water from chamber 19 is discharged through

5 nozzle 20. Water from tank 1 is diverted by nozzle 21.

 Formula

the invention

A device for dewatering the hydrocarbon medium, including a tank in which two chambers with oppositely charged electrodes are installed and a vertical mixing tube, characterized in that, in order to increase the process efficiency by increasing the contact surface and uniform distribution of the treated medium,

The electrodes are made in the form of hollow truncated semi-cones with a stepped side surface, the device is equipped with perforated partitions attached to the steps of the semi-cones, a dielectric insert placed between the electrodes, and a distribution chamber with a perforated lid installed under the mixing tube. Information sources. taken into account in the examination

Fya .- / 1. US Patent 3458429, cl. 204-302, 1969. 2, USSR Copyright Certificate No. 550163, cl. C 10 G 33/02, 1975 (prototype).

Claims (1)

Claim A device for dehydration of a hydrocarbon medium, including a tank in which two chambers with oppositely charged electrodes ₅ _ and a vertical mixing tube ³³ are installed, characterized in that, in order to increase the efficiency of the process by increasing the contact surface and uniform distribution of the treated medium, 60 electrodes are made in the form of hollow truncated half-cones with a stepped lateral surface, the device is equipped with perforated partitions attached to the steps of 65 half-cones ·, dielectrics -parameter insert placed between the electro · rows, and a distribution chamber with an apertured cover mounted under the mixing tube.