SU842030A1 - Separator - Google Patents

Description

The invention relates to the separation of liquids with different densities, in particular, the purification of water from petroleum products, and can be used on ships as a device for purifying bluish water from petroleum products, on tankers for cleaning ballast and washing waters, and offshore stationary and floating drilling. installations, collecting ships for spilled oil, as well as port shore installations.

The closest to the proposed technical essence and the achieved effect is a separator for separating the oil / water mixture, comprising a housing with an oil tank, bulkheads, devices for entering the oil / water mixture, sludge discharge and a package of corrugated coalescing plates with perforation 1.

However, such a separator has an insufficiently high degree of water purification, since the hydrodynamic conditions of settling are not optimal.

The purpose of the invention is to increase the degree of water purification by creating optimal hydrodynamic conditions for its separation.

This goal is achieved due to the fact that in the proposed device the package is equipped with partitions, plates through one are made with perforations on the ridges, and the partitions and bulkheads are placed between the perforated and non-perforated plates.

In figure 1 isobrgiken offer

0 separator / general view in figure 2 section aa in figure 1; on fig.Z - package corrugated coalescing plates.

The structure of the separator includes a body 1, divided (bulkheads into three cavities: cavity B of gravity sediment, cavity B of coalescing elements and cavity G of purified water removal.

0

 The supply of the oil / water mixture is made through the mixture feed device 2.

The cavity B is divided into two parts by a cascade partition 3, and in

5 of the upper part, it has a segmented slice. The nal cavity has an oil tank 4 with a device for discharging a concentrated oil product, and in the lower part of the cavity is a device

0 5 for removal of slag.

The cavity in is designed to install the coalescing elements 6. The coalescing element is a duct open at the ends, with corrugated upper 7 and lower 8 walls and smooth side walls 9. The lower and side walls are made deaf and the upper is perforated, and the perforation is only in crest of waves.

The coalescing elements are assembled into the block 10 by hermetically fastening them on the bulkheads 11, in which there are cutouts that, in configuration, follow the contour of the cross sections of the elements. The entire unit is assembled in the separator by means of a hermetic connection of the casing and reassembling 11. Thus, a cavity B is formed.

The cavity B and cavity T are communicated only by channels, and cavities B and D with cavity C only through the perforations of the upper walls of the channels. Above the cavity B there is an oil collector with a device 12 for withdrawing oil product.

The cavity B is designed to drain purified water. A guide plate 13 is installed in it, a cascade partition 14 is similar to a cascade partition 3 in cavity B, a device for discharging purified water 15 and an oil tank with a device for diverting oil 16.

The separator works as follows.

 Through the oil / water supply unit 2, the separator is filled with the mixture. When leaving the device 2, the mixture encounters a cascade partition 3 in its path, rises up to the slice and bends around it. At the same time, the largest particles of petroleum product are collected from it under the action of the Argkhimed force, which are collected in the oil tank 4 and diverted overboard.

Freed from the largest particles of oil, the mixture enters the channels. When passing through the flow channels, the mixture repeatedly changes its direction, since the top 7 and bottom 8 walls of the coalescing element are corrugated. This contributes to the greatest number of collisions of petroleum particles with the surface of the upper and lower c. Of the element. Due to the presence of an intensive process of mixing the upper and lower walls of the element with oil, the latter coalesces on their surface and. having enlarged sufficiently, under the action of the Archimedean force, it emerges and encounters the upper plate in its path (if the process occurs on the lower plate or rolls over the surface to the top of the ridge (if the process occurs on the upper plate)

Oil particles, which are not expelled from polluted water during passage through channels, enter the cavity H with the water. The shield 13 directs downward flow, which then bends the cascade partition 14, / enters the device 15 for removal of purified water and then overboard . When the water flows around the cascade partition, oil product particles are also emitted from it, which float into the oil tank 16 and are discharged.

Claims (1)

1. USSR author's certificate No. 536666, .kl. C 02 C 1/26, 1977.