SU1755934A1 - Device for cleaning dielectric liquids - Google Patents

Abstract

The invention relates to devices for cleaning dielectric liquids and can be used in food, oil refining, engineering aviation and other industries to clean liquids from mechanical impurities of waxes, paraffin, water. Purpose - improving cleaning efficiency. The device includes a housing, an injection electrode system (IE) , inlet and outlet collectors, dielectric screens of rectangular section, the ratio of the width of which to the interelectrode distance from ene is in the range 0,04-0 15 February yl

Description

The invention relates to devices for the purification of dielectric liquids, in particular for the purification of petroleum, petroleum products and vegetable oils from mechanical impurities, paraffin, waxes, water, and may find application in the refining, food and other industries.

The purpose of the invention is to increase the cleaning efficiency of dielectric liquids.

FIG. 1 shows the device in FIG. 2 - a section of the device

The device consists of a housing 1 with an inlet 2 and a drain 3, 4 branch pipes. Inside the case there is a block of chambers 5, divided by partitions 6 into sections 7. The chambers are equipped with grounded 8 and high-voltage electrodes 9 with dielectric screens 10, collectors for the input of the cleaned liquid 11, output purified 12 and concentrated suspension 13

The device works as follows.

The liquid to be cleaned through the nozzle 2 and the collector 10 enters the section 7 of the chambers 5 for processing. After filling the chambers, high voltage electrodes 9 with dielectric screens 10 supply high voltage and process the liquid in an electric field. E wound 10 limits the dispersion of the ion drip from the injecting electrodes, which increases the charge density in the liquid and thus the cleaning efficiency. After processing, the purified liquid is drained through the nozzle 3, and the highly concentrated suspension through the nozzle 4

Example In order to determine the optimum values of the ratio of the width of the dielectric screen to the interelectrode distance - d1 / d2, experiments were performed on the cleaning efficiency of a suspension of waxes in sunflower oil, which was prepared on the basis of refined and deodorized oil by adding dissolved waxes and their subsequent cristization. The initial wax concentration was 0.475 % processing voltage - 15 kV, timeV |

JV SL

s

four

m-processing - 40 min. The ratio di / cte varied within 0.04 - 1.32. To prevent dispersal of the stream of priests between the internal surfaces of the section and the screen 10, the last ends contact the internal surfaces of the section, i.e. its length was equal to the internal width of the section. From the dependence of the residual content of Ca,% of the ratio di / d2, it follows that the optimum cleaning efficiency is observed at di / d2 0.06. In the vicinity of 0.04 di / d2 0.5, the cleaning efficiency decreases slightly.

Experiments were also carried out on cleaning the suspension on a device without a dielectric screen. With identical processing parameters and no dielectric screen, the residual wax content was 0.245%, while the residual

the wax content with a parameter di / dz of 0.04 and 0.15 is 0.06%.

Thus, the cleaning efficiency in the treatment mode selected for comparison is 0.245% / 0.06% 4 times higher than

on a device without a dielectric screen.

Claims (1)

Formula of inventions Dielectric cleaning device fluids in an electric field, containing a housing consisting of sections with a system of injecting high-voltage and earthed electrodes, supply and discharge collectors, characterized in that, in order to increase the cleaning efficiency, the high voltage injecting electrodes are provided with dielectric screens of rectangular cross section with a ratio of their width to the interelectrode distance of 0.04-0.15 and a length equal to the internal width of the section. iZLz 9 FIG. 2