SU874094A2 - Device for purifying water from oil products and mechanical impurities - Google Patents

Description

The invention relates to devices for the separation of immiscible liquids and can be used to purify water from petroleum products and mechanical impurities.

According to the main author. St. No. 682242, a device for purifying water from petroleum products and mechanical impurities is known, comprising a housing, a coalescence chamber with grids between which a coalescing material is placed, nozzles for removing oil products from sludge and a device for removing purified water. Chamber: the coalescence is made in the form of a mustache, a cone of a cone, the nets are placed in the upper and lower bases of the cone, and the device To remove the purified water is made in the form of a hydraulic seal. In addition, the sludge removal nozzle is equipped with a cap placed above it, which has inward-curved edges, and a ring, concentrically concentric to the nozzle, with

This device for removal of purified water is provided with a cylindrical screen.

In the known device, water purification is carried out using an oil-containing water filtration method through a liquid contact mass from oil, after its passage the clarified water is discharged to the consumer p}.

ten

A disadvantage of the known device is that oil particles with a size of less than 15 microns contained in the water being purified are filtered through contact Macicy from oil by it.

"5 do not retract and slip into the clarified water, thereby reducing the cleaning efficiency.

The purpose of the invention is to increase the efficiency of water purification,

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The goal is achieved by the fact that the known device is equipped with electrodes placed throughout the cross section of the housing above

device for removal of purified water.

In the drawing there is a general vertical view of the device's airborne equipment.

The device comprises a housing 1, a nozzle 2 for introducing source water, a coalescence chamber 3, a device 4 for draining purified water, a nozzle 5 for removing trapped oil and gases, and a nozzle 6 for removing sludge, a grid 7, a ring 8 and a cone-shaped cap 9. Above the device for removal of purified water 4 are placed electrodes 10, connected to a direct current source (Fig. Not shown).

The device works as follows

The source water through pipe 2 is fed into the coalescence chamber 3, where the fine particles of oil contained in the source water coalesce, where it is evenly distributed through the entire section of the housing 1 enters the contact mass of oil placed under the coalescence chamber 3 the contact mass of oil, water is purified from oil particles larger than 15-20 microns, and then subjected to flotation by gas bubbles resulting from the electrolysis of water on the electrodes 10. As a result, the degree of water purification increases as a result of flotation Which after passing mass amount between the contact device 4 of oil and for discharging the treated water is withdrawn through device 4. trapped oil together with the gases poluchayuschimis the electrolysis of water, is withdrawn through conduit 5, and the sludge is removed through the pipe 6,

Electrode supply of the device and the implementation of electroflotation of pre-treated water in the volume between the contact mass of oil and

devices for removal of purified water provide a significant increase in the degree of purification and efficiency of the device, Gases, obtained by electrolysis of water on the electrodes,

not only allow the electroflotation of pre-treated water, but also have a beneficial effect on the state and operation of the contact mass of oil itself. The rising gases of water electrolysis create a boost to the contact mass, limiting its stretching due to the formation of a two-phase system. This prevents particles from entering.

oil from the contact mass in purified water, in addition, the saturation of the contact mass with gas bubbles, forming || ) resulting from the electrolysis of water, increases the mobility of the contact mass and mass transfer in it,

Claims (1)

1. USSR author's certificate No. 682242, cl. B 01 D 17/02, C 02 C 1/26, 1976,