RU2126771C1 - Device to treat water with electric discharges - Google Patents

Abstract

FIELD: oxidation of disinfection impurities. SUBSTANCE: device to treat water with electric discharges includes chamber where water is mixed with ozone and air mixture having form of ejector pump, high-voltage high-frequency generator connected to ozone synthesis chamber. Ozone synthesis chamber is fabricated in the form of hollow external electrode that houses dielectric tubular partition placed with gaps, central electrode with longitudinal holes to pump water through. Clearance between hollow external electrode and dielectric tubular partition is filled with dielectric liquid. Intermediate electrodes of mushroom shape are installed in dielectric tubular partition. Several ozone synthesis chambers mounted horizontally or inclined are mounted for one common ejector pump. EFFECT: increased efficiency of ozone and water mixing, prolonged operational life of device. 1 cl, 2 dwg

Description

 The invention relates to water treatment and water treatment systems, and in particular, to apparatus devices used for treating water with electric discharges in order to oxidize impurities and disinfect.

 There are known devices for treating water with ozone synthesized in a barrier discharge when a stream of dried air is passed through it (see Vigdorovich V.N., Pravnikov Yu.A., Nizhade-Gaagani E.A. Problems of ozonation and ozone treatment and the creation of second-generation ozone generators. M. - S.-Pb. “Ozonite.” 1994. - 112 p.). The devices consist of a high-voltage source, a chamber for producing ozone and a chamber for mixing the ozone-air mixture with water. Ozone is synthesized in a stream of air in a barrier discharge. Quartz is used as a dielectric to create a barrier discharge, and the ozone-air mixture is mixed in a bubble chamber or in a counter-current shower chamber.

 The disadvantage of such devices is their low resource associated with the use of a solid dielectric - quartz. Solid dielectrics quickly burn out under the action of an electric field of high tension, resulting in their breakdown.

 Other disadvantages of these devices are their complexity and significant material consumption: before entering the ozone production chamber, air is preliminarily passed through a drainage and purification unit. The device also contains an additional cooling system for the discharge zone with water, which is a consumable material.

 Closest to the claimed is a device for treating water with electric discharges (see AS USSR N 1820897, class C 02 F 1/46, publ. June 7, 1993).

 The device consists of a current pulse generator connected to high voltage and grounded electrodes installed in the housing of the process chamber with disinfected water. The housing of the process chamber is made of a dielectric and is divided into cavities by means of high-voltage and grounded electrodes, each of which is made of metal foil covered by a sheet dielectric and having through holes with a diameter of 1-5 mm, the number of which is determined by the ratio.

 The disadvantage of this device is the low yield of ozone when discharged in water, which does not allow you to effectively purify water from impurities and bacteria.

 The main technical task of the proposed device is to increase the service life and efficiency of mixing ozone with water by filling a gap between the hollow outer electrode and the dielectric tubular partition by dielectric fluid. Compared with the prototype, which uses a solid dielectric (quartz), the life of the proposed device with a liquid dielectric is 3-4 times greater. In the dielectric tubular partition to create an electric discharge, intermediate electrodes of the mushroom shape are strengthened, the caps of which are placed in the dielectric fluid, and the legs are directed towards the central electrode. Due to the shape of the mixing chamber, made in the form of an ejector pump, in the upper part of which the ozone-air mixture and water are pre-mixed, in the lower part of the ejector pump, where gas-liquid flows are turbulized, due to which water is more effectively mixed with the ozone-air mixture.

 To increase the productivity of the device, several oblique or horizontally located chambers for ozone synthesis are installed on one common ejector pump.

 The specified technical problem is achieved in that in a device for treating water with electric discharges containing a chamber for mixing water with an ozone-air mixture, a pumping system for water and air, as well as a high-voltage high-frequency generator connected to an ozone synthesis chamber, which is made in the form of a hollow outer electrode, inside of which a dielectric tubular partition is placed with gaps, and a central electrode having a longitudinal opening for pumping water is installed inside this partition, according to According to the above solution, the gap between the hollow outer electrode and the dielectric tubular partition is filled with dielectric fluid, and in the dielectric tubular partition intermediate mushroom-shaped electrodes are reinforced, the caps of which are placed in the dielectric fluid, and the legs of the electrodes are directed toward the central electrode. The chamber for mixing water with the ozone-air mixture is made in the form of an ejector pump, the housing of which is connected to the hollow outer electrode, and the central electrode is located coaxially with the conical body of the ejector pump. In addition, it is advisable to make the device in the form of several obliquely or horizontally located chambers for ozone synthesis, at the output of which a common ejector pump is installed.

 The drawing (Fig. 1) shows a diagram of a device for treating water with electric discharges.

 The device consists of a chamber for mixing water with an ozone-air mixture in the form of an ejector pump 1, a high-voltage high-frequency generator 2, connected to an ozone synthesis chamber, which is made in the form of a hollow outer electrode 3, inside which a dielectric tube 4, a central electrode with a longitudinal hole, is placed with gaps for pumping water 5. The gap between the hollow outer electrode 3 and the dielectric tube 4 is filled with dielectric fluid 6, and in the dielectric tube 4 ke reinforced intermediate electrodes 7 mushroom shape.

 In FIG. 2 shows a diagram of a device made in the form of several obliquely or horizontally located chambers for ozone synthesis, at the output of which a common ejector pump is installed.

 The operation of the device for water treatment by electric discharges is as follows. Water flow is supplied to the central hollow electrode 5 having a longitudinal opening for pumping water. Air is pumped in synchronously with the water supply to the hollow electrode 5 and the ejector pump 1, the water and air pumping system includes a water main or water pump, providing a pressure of more than 1 - 2 atm. When you turn on the high-voltage high-frequency generator 2 between the Central electrode 5 and the intermediate electrodes 7, mounted in a dielectric tube, their legs ignite the discharge generating ozone. The ozone-air mixture with a stream of water enters the mixing chamber 1, representing an ejector pump. After mixing, the mixture of water with ozone is sent to a storage or intermediate tank.

Claims (2)

 1. A device for treating water by electric discharges, containing a chamber for mixing water with an ozone-air mixture, a system for pumping water and air, as well as a high-voltage high-frequency generator connected to an ozone synthesis chamber, which is made in the form of a hollow outer electrode, inside of which a dielectric tube is placed with gaps a partition, and inside this partition a central electrode is installed, having a longitudinal hole for pumping water, characterized in that the gap between the hollow outer electrode and the dielectric tubular septum is filled with a dielectric fluid, in the dielectric tubular septum are intermediate mushroom-shaped electrodes, the caps of which are placed in the dielectric fluid, and the legs are directed towards the central electrode, the chamber for mixing water with the ozone-air mixture is made in the form of an ejector pump, the conical body of which is connected to the hollow the outer electrode, and the central electrode is aligned with the conical body of the ejector pump.  2. The device according to claim 1, characterized in that it is made in the form of several obliquely or horizontally located chambers for the synthesis of ozone, the output of which has a common ejector pump.

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