RU61705U1 - ELECTROHYDRAULIC DEVICE FOR CLEANING AND DISINFECTING INDUSTRIAL AND WASTE WATERS - Google Patents

Abstract

The utility model relates to an electro-hydraulic device for cleaning and disinfecting industrial and wastewater. The objective of the utility model is to simplify the design and control of the electro-hydraulic device and increase efficiency and ensure the stability of the treatment and disinfection of industrial and waste waters. The problem is solved in that in an electro-hydraulic device for cleaning and disinfecting industrial and wastewater containing a flow-type reactor with a pair of electrodes mounted in its body for supplying a high-voltage pulse discharge, industrial and wastewater inlet pipes and purified water discharge, according to the solution, tubes are introduced for input and output of excess gas; an electric heating furnace for the reactor, controlled by a thermocouple; solution dispenser; an electric mixer, one of the electrodes is made in the form of a movable pin, and the second in the form of a plate located horizontally at the bottom of the reactor, with an area corresponding to its size. The distance between the electrodes varies from 1 to 25 mm. The electrodes are made of tungsten metal or molybdenum or titanium or their alloys.

Description

The utility model relates to the purification and disinfection of industrial and wastewater by the method of electro-hydraulic action and the production of high quality purified water from organic impurities and microorganisms on this basis.

Known devices for electrochemical treatment and disinfection of industrial and wastewater, called "electrolyzers" [Cherkinsky SN // Hygiene and sanitation. - 1980. - No. 11. - S. 72-73].

A certain limiting factor in the use of electrolyzers is the high energy intensity of the processes, the complexity of the equipment used, the lack of a sufficient number of suitable electrical and corrosion-resistant materials for the manufacture of anode plates. The energy consumption in the electrolytic cells is proportional to the concentration of organic impurities in the wastewater, the distance between the electrodes, and current density. Reducing the energy consumption contributes to an increase in water temperature, removal of the gas phase from the interelectrode space. All this complicates the process of cleaning and disinfecting contaminated water. Therefore, despite the possibility of effective treatment of industrial and industrial and wastewater, the use of electrolyzers is fundamentally limited.

Closest to the proposed solution is a device for cleaning and disinfecting industrial and industrial and wastewater by electro-hydraulic impact [L.A. Yutkin Electro-hydraulic effect and its application in industry. L .: Engineering, Leningrad. Department, 1986. - 253 pp.], made in the form of a pipe (reactor) with integrated in the bushings and passing through its walls, located on the same axis in pairs of isolated positive and negative pin electrodes, powered by an independent high-voltage pulse discharge circuit, specified groups of which, in turn, are fed from a common source of nutrition.

In this device, wastewater is continuously supplied to the reactor through a pipe. The wastewater filling the cavity of the reactor is subjected to electro-hydraulic action that occurs on the arrester, the electrodes of which are passed through the insulators inside the reactor, and through the second nozzle it is removed already cleaned and disinfected. If necessary, the use of gases, liquids or powders

they are in the discharge zone through a common pipe into the cavity of the inner tubular electrodes.

The disadvantages of this device are the following design points:

the use of several pairs of electrodes fundamentally complicates the design of the system and, as a result, the electrical control of the device as a whole;

the pin design of several pairs of electrodes requires their precise alignment along the axis in the reactor cavity, and also limits the efficiency of the contact of the liquid volume in the zone of their discharge;

the use of a common pipe for introducing into the reactor industrial and industrial and wastewater and additional chemical components (liquid and gaseous) makes it difficult to mix them especially in a flow system.

The objective of the utility model is to simplify the design and control of the electro-hydraulic device and, as a result, increase the efficiency and ensure the stability of the treatment and disinfection of industrial and industrial and wastewater.

The problem is solved in that in an electro-hydraulic device for cleaning and disinfecting industrial and wastewater containing a flow-type reactor with a pair of electrodes mounted in its body for supplying a high-voltage pulse discharge, industrial and wastewater inlet pipes and purified water discharge, according to the solution, tubes are introduced for input and output of excess gas; an electric heating furnace for the reactor, controlled by a thermocouple; solution dispenser; an electric mixer, one of the electrodes is made in the form of a movable pin, and the second in the form of a plate located horizontally at the bottom of the reactor, with an area corresponding to its size. The distance between the electrodes varies from 1 to 25 mm.

The electrodes are made of tungsten metal or molybdenum or titanium or their alloys.

The utility model is illustrated by drawings. Figure 1 shows a diagram of a device that provides the efficiency and stability of the treatment and disinfection of industrial and waste water, figure 2 shows the location of the electrodes in the reactor, where:

1 - mixer motor;

2 - gas inlet tube;

3 - thermocouple;

4 - cover holder;

5, 18 - axis of attachment;

6 - a protective casing of the thermocouple;

7 - metal casing of the installation;

8 - thermal insulation of the installation;

9 - electric oven;

10 - metal reactor;

11, 12 - electrodes of electro-hydraulic impact;

13 - mechanical stirrer;

14 - bed;

15 - pipe discharge of purified water;

16 - metering gear;

17 - an arm;

19 - a cover of a metal case;

20 - cooling system of the housing cover;

21 - exhaust gas outlet pipe;

22 - dispenser valve;

23 - dispenser feed solutions;

24 - pipe input industrial and wastewater;

25 - wastewater.

The device comprises a metal reactor 10, placed in a metal case 7 with a cover 19, equipped with a cooling system 20 and fixed by a holder 4 on the axis of attachment 5. The reactor 10 is heated by an electric furnace 9 and protected from the metal case 7 by thermal insulation 8.

On the lid 19 through the sealed holes in the volume of the reactor 10 introduced:

mechanical stirrer 13 (in the center) with an electric motor 1;

a thermocouple 3 in a protective casing 6, designed to control the temperature of the electric furnace 9;

pipe 24 input industrial and industrial and wastewater;

tube 2 and 21 of the input and output of gases from the reactor 10;

a dispenser 23 for supplying a solution with a valve 22, mounted with a gearbox of the dispenser 16 on the bracket 17 of the mounting axis 18;

electrode 11 with an isolated electrical terminal, designed to connect to the installation of electro-hydraulic effects.

The second electrode 12 is located at the bottom of the reactor 10 and has a separate insulated electrical outlet connected to the electro-hydraulic impact unit.

Through holes in the bottom of the housing 7 and the reactor 10 is mounted a pipe 15 output purified water.

All installation nodes are mounted on a bed 14.

As can be seen from figure 2, the electrode system 11 and 12 "tip (pin) - platform" does not require adjustment.

The device operates as follows.

Waste water is supplied to the metal reactor 10 through the pipe 24, which flows out of the pipe 15. If necessary, it is heated by an electric furnace 9 controlled by a thermocouple 3. If the treatment technology for industrial and industrial and waste water involves the introduction of gas oxidizing agents, for example, oxygen, its supply is carried out through the input pipe 2 with the excess output through the pipe 21. If necessary, the use of liquid oxidizing agents (catalysts, etc.) are used separately built into the cover 19 of the dispenser 2 3, controlled by valve 22. For better mixing of the components, an electric mixer 13 is turned on. After establishing the necessary high-speed flow of pitifulness and stabilizing the temperature and concentration state of the reactor 10, a high-voltage pulse discharge from the electro-hydraulic impact unit is supplied to the electrodes 11 and 12. Since the water outlet is through the pipe 15 located at the bottom of the reactor 10, it completely wetts the flat electrode (plate) 12 located directly at the bottom of the reactor. As a result, there is a complete passage of liquid through the discharge electrode gap of the device, which is facilitated by additional mixing of water.

In the process of processing industrial and industrial and wastewater, electrodes 11 and 12 are supplied with a high voltage pulse discharge with a voltage of 15-20 kV, a pulse duration of 1-20 Moscow time with an interval of 1-25 Moscow time.

The electrodes 11 and 12 must be in the liquid. Moreover, the immersion depth of the electrode 11 does not depend on the number of pulses and the magnitude of the discharge voltage.

The magnitude and stability of maintaining an electrical discharge depends on the dielectric constant of waste (contaminated) water. Therefore, a change in these parameters is selected experimentally by changing the distance between the electrodes 11 and 12. Experiments have shown that, as a rule, this distance should vary within 1-25 mm. When the gap between the electrodes is less than 1 mm, intense corrosion of the electrodes is observed, and more than 25 mm - attenuation of the electric discharge. Vertical

the movement of the electrode 11 with respect to 12 is carried out using a threaded connection in the lid 19 of the reactor 10.

The electrodes 11 and 12 are made of tungsten metal, molybdenum, titanium or their alloys, which excludes their physico-chemical corrosion under the influence of an electric discharge.

Claims (3)

1. Electro-hydraulic device for cleaning and disinfecting industrial and wastewater, comprising a flow-type reactor with a pair of electrodes mounted in its body for supplying a high-voltage pulse discharge, industrial and wastewater inlet pipes and purified water discharge, characterized in that tubes for the input and output of excess gas, an electric furnace heating the reactor, controlled by a thermocouple, a dispenser for supplying solutions, an electric mixer, one of the electrodes is made in the form of a movable pin, and the second a plate placed horizontally on the bottom of the reactor, with an area corresponding to its size. 2. The electro-hydraulic device for cleaning and disinfecting industrial and waste water according to claim 1, characterized in that the distance between the electrodes varies from 1 to 25 mm. 3. The electro-hydraulic device for cleaning and disinfecting industrial and waste water according to claim 1, characterized in that the electrodes are made of metal tungsten, or molybdenum, or titanium, or their alloys.