RU120415U1 - DEVICE FOR ELECTROCHEMICAL PROCESSING OF DRINKING WATER - Google Patents

Abstract

 1. Device for the electrochemical treatment of drinking water, including a reactor with a container in which insoluble electrodes, a sealed supply tank and a control unit are located, while in the upper part of the reactor tank there is a device for supplying purified water, in the bottom there is a device for dumping sludge, in the bottom a part of the tank has a device for outputting purified water to the supply tank and discharging water with sludge, and a maximum water level sensor is installed in the upper part of the tank, and a sensor is installed in the lower part of the tank, determining the minimum level of purified water, said supply tank is equipped with a device for supplying compressed air to the tank and a device for draining water, wherein said insoluble electrodes, a device for supplying purified water, a device for discharging sludge, a device for discharging purified water into a consumable tank and discharging water with sludge , the maximum level sensor and the minimum sensor level of the reactor, as well as a device for supplying compressed air to the supply tank are connected to the control unit. ! 2. The device for electrochemical processing according to claim 1, characterized in that the said insoluble electrodes are fixed in the bottom of the reactor vessel and are made in the form of parallel plates. ! 3. The device for electrochemical processing according to claim 2, characterized in that the said electrodes are made of graphite. ! 4. The device for electrochemical processing according to claim 1, characterized in that the electrode space of the first electrode is separated from the rest of the reactor space by a delimiting grid. ! 5. The device for electrochemical processing according to claim 1, characterized

Description

The proposed utility model relates to electrochemical technologies for water purification and can be used in domestic conditions for additional purification of tap water and for obtaining drinking water from natural drinking water supply.

Various devices for the electrochemical treatment of drinking water are known.

In the utility model patent of the Russian Federation No. 95326 “A household device for the electrochemical treatment of drinking water”, publication 06/27/2010, the device contains a reactor vessel with an aluminum-based electrode package located in it, a filter vessel with a filter element included in the consumer’s water supply system, also including valve and pump.

In the patent for utility model of the Russian Federation No. 48971 “Device for the electrochemical purification of drinking water”, publication November 10, 2005, the device contains an electrode block installed in the housing, in which a packet of parallel electrodes and an anode are installed, a flotator made in a separate housing, and coarse and fine filters cleaning, a means for collecting sludge and a pump for discharging sludge, as well as a pump for supplying clean water to the consumer.

In the patent for the invention of the Russian Federation No. 2417951 "Method for the electrochemical purification of drinking water and a device for its implementation", publication 05/10/2011, the device comprises a reactor with a packet of parallel soluble electrodes, a settling reactor, where water is subjected to electroflotation using a packet of insoluble electrodes in the filling mode and sludge. After raising the coagulant to the neck of the settling reactor, the coagulant is drained and the water is filtered. The coagulant is drained by the displaced volume of water through the coagulant removal means, the water remaining in the tank of the settling reactor is drained, while it is subjected to final purification by applying a supply voltage to an additional package of insoluble electrodes placed in the stream of drained water.

The disadvantages of the known devices include the presence of soluble aluminum electrodes, which necessitates changing them from time to time and leads to significant inconvenience in operation, cost of operating costs of the known device. The use of these electrodes leads to a significant increase in the concentration of aluminum and its compounds in water, which with prolonged intake of such water by a person in an unknown way can affect his health, as well as the need for a system to remove flocs of colloid formed as a result of dissolution of aluminum in water.

The technical problem solved by the utility model was to create a device:

- working in an automatic mode of operation from pouring a new portion of water into the reactor to moving treated water (water ready for use) to the reservoir for storing and preparing the device for receiving a new portion of treated water, which would greatly simplify the process of operation of the device;

- working without the use of aluminum electrodes, which would allow avoiding the problem of an increased aluminum content in the water, and the presence of colloid flakes in the treated water, and would also reduce operating costs;

- effectively removes water-soluble organochlorine compounds;

The essence of the proposed utility model lies in the fact that the device for the electrochemical treatment of drinking water includes a reactor with a container with insoluble electrodes, a sealed supply tank, and a control unit. A device for supplying purified water is located in the upper part of the reactor vessel, a device for discharging sludge is installed in the bottom, a device is installed in the lower part of the vessel for discharging purified water to the supply tank and discharging water with sludge, and a maximum water level sensor is installed in the upper part of the vessel, and a sensor is installed in the lower part of the tank, which determines the minimum level of purified water. The supply tank is equipped with a device for supplying compressed air to the tank and a device for draining water. Insoluble electrodes, a purified water supply device, a sludge discharge device, a purified water output device and a sludge discharge device, a maximum level sensor and a minimum level sensor of the reactor, as well as a device for supplying compressed air to the supply tank, are connected to the control unit .

In a particular case, in the device for electrochemical water treatment, insoluble electrodes are fixed in the bottom of the reactor vessel and are made in the form of parallel plates.

In addition, insoluble electrodes can be made of graphite.

In particular, the electrode space of the first electrode is separated from the rest of the reactor space by a delimiting grid, which allows changing the redox potential of water. The change in the redox potential is achieved by moving electrons to the anode from the total volume of the reactor and creating a zone with a high concentration of oxidized substances. The boundary network prevents the reverse migration of oxidized substances. Thus, an electron-deficient zone is created in the rest of the reactor, which creates a negative redox potential.

In particular, the device for discharging purified water to a flow tank and discharging water with a slurry is equipped with a first transfer pump, the output of which is connected by a line for transferring purified water to a flow tank and a second pump for discharging water with slurry.

In particular, the device is equipped with a discharge of sludge residues of oxidized substances, the output of which is connected to a third transfer pump, designed to discharge water with sludge from the area bounded by the boundary network.

For continuous disinfection of purified water, an ultraviolet radiation source is installed in the upper part of the supply tank, in particular, an LED with an ultraviolet radiation spectrum.

The supply tank can be additionally equipped with an overpressure sensor connected to the control unit to ensure the safe operation of the device.

The proposed utility model is illustrated by a block diagram of a device for the electrochemical treatment of drinking water, shown in Fig.1.

The device comprises a reactor vessel 1, a first electrode 2, a second electrode 3, a supply tank 4, a control unit 5, a valve device 6, a purified water pumping device 7, a first 8 sludge residue discharge device, a second sludge residue discharge device 9, an inlet 10 , filler nipple 11, sprayer 12, line 13 for the discharge of sludge residues into the sewer, demarcation grid 14, device 15 for indicating the upper water level in the reactor vessel, device 16 for indicating the lower water level in the reactor vessel, indicator 17 minimum water level in the supply tank, compressor nozzle 18, purified water supply nozzle 19 to the consumer, air overpressure sensor 20, electric compressor 21, purified water discharge line 22 to the consumer, non-return valve 23, ultraviolet diode 24.

The utility model consists of four main blocks: reactor capacity 1, supply tank 4, compressor 21 and control unit 5.

The reactor contains a tank 1, in which two graphite electrodes are mounted in the form of plates: the first electrode 2 and the second electrode 3, a delimiting grid 14, a sprayer 12 with a filler nozzle 11. Three pumps are installed at the bottom of the tank 1, outside the reactor: water, the first device 8 for discharge of sludge residues, the second device 9 for discharge of sludge residues, which serve for the overflow of clean water from the tank 1 of the reactor into the supply tank 4 and for the discharge of residual water with sludge into the sewer when the reactor is shut down. Two level sensors 15 and 16 are installed on the side surface of reactor vessel 1, which monitor the upper level when water is poured into the reactor, sensor 15 and the level to which water merges when pure water is poured into the supply tank, sensor 16. Level sensors 15 and 16 can be made in the form of screws from conductive plastic, which ensures the presence of electrical contact between the common electrode and the sensor and, as a result, the supply of an electrical signal to the control unit 5 when the sensor is immersed in water. The role of the common electrode is performed by one of the electrodes 2 or 3, to which the control voltage 5 is supplied by the control unit 5 at the necessary time of the working cycle.

The supply tank 4 (treated water tank) is a sealed container to which compressed air is supplied through the nozzle 18 from the compressor 21 to provide pressure for lifting water from the supply tank to the consumer’s clean water tap (not shown in the diagram). When a consumer opens a tap of pure water, water from a supply tank, displaced by compressed air, enters the consumer.

An overpressure sensor 20 is installed on top of the supply tank, which controls the operation of the compressor 21, turns it off when the specified air pressure in the supply tank is reached, and turns it on when the air pressure drops below the set pressure, and an ultraviolet LED 24, which is necessary to maintain clean water sterility, which works constantly after turning on the device.

On the side wall of the tank 1 there is a fitting for overflowing clean water from the reactor (not shown in Fig. 1)) and a sensor 17 for indicating the minimum water level in the supply tank, which monitors the lower minimum water level in the supply tank, from which a new duty cycle is started . For operation of the level sensor 17, an electrode is installed at the bottom of the supply tank (not shown in the diagram), to which an electric voltage is supplied from the control unit 5. The level sensor 17 and the electrode are made and operate similarly to the level sensors 15 and 17 of the reactor vessel 1.

A device for the electrochemical treatment of drinking water works as follows:

When applying a supply voltage to the control unit 5, the latter determines the water level in the reactor vessel 1. When the water level in the reactor is lower than the maximum water level indicator 15 in the reactor, the control unit 5 gives a command to open the valve device 6, thereby supplying the source water to reactor capacity 1. Upon reaching the water level, the display device has a maximum level of 15, the control unit gives a command to close the valve device 6. Next, the control unit 5 supplies a constant voltage to the electrodes 2 and 3. On Mode electric treatment of water. During processing, convective flows formed during the electrolysis of the treated water create conditions for active multiple mixing of the treated water. At the end of the electric water treatment, a cycle of pumping the treated water into the clean water supply tank 4 is switched on. Pumping is performed provided that the water level in the supply tank 4 is lower than the minimum water level indication device 17. The volume of the reactor vessel 1 and the supply vessel 4 are selected so that the water from the reactor vessel 1 is completely pumped to the supply tank 4. When the water level in the supply tank 4 is higher than the minimum level indication device 17, the unit goes into standby mode and the pumped water pumping mode It turns on only after the water level drops below the minimum level display device 17. At the end of the pumping of the treated water, when the water level in the reactor 1 falls below the device 16 for indicating the minimum water level in the reactor tank 1, the control unit 5 turns off the pumped water pumping device 7 and includes devices 8 and 9 for sludge residue discharge. Devices 8 and 9 for discharge of sludge residues work for a given period of time programmed in the control unit 5. The time interval is selected from the conditions of guaranteed complete pumping of sludge residues from the tank 1 of the reactor. At the end of the mode of pumping out sludge residues, the treatment cycle is repeated.

Claims (8)

1. Device for the electrochemical treatment of drinking water, including a reactor with a container in which insoluble electrodes, a sealed supply tank and a control unit are located, while in the upper part of the reactor tank there is a device for supplying purified water, in the bottom there is a device for dumping sludge, in the bottom a part of the tank has a device for outputting purified water to the supply tank and discharging water with sludge, and a maximum water level sensor is installed at the top of the tank, and a sensor is installed at the bottom of the tank determining the minimum level of purified water, said supply tank is equipped with a device for supplying compressed air to the tank and a device for draining water, wherein said insoluble electrodes, a device for supplying purified water, a device for discharging sludge, a device for discharging purified water into a consumable tank and discharging water with sludge , the maximum level sensor and the minimum sensor level of the reactor, as well as a device for supplying compressed air to the supply tank are connected to the control unit. 2. The device for electrochemical processing according to claim 1, characterized in that the said insoluble electrodes are fixed in the bottom of the reactor vessel and are made in the form of parallel plates. 3. The device for electrochemical processing according to claim 2, characterized in that the said electrodes are made of graphite. 4. The device for electrochemical processing according to claim 1, characterized in that the electrode space of the first electrode is separated from the rest of the reactor space by a delimiting grid. 5. The device for electrochemical processing according to claim 1, characterized in that the said device for outputting purified water to a supply tank and discharge of water with sludge is equipped with a first transfer pump, the output of which is connected by a pipeline for transferring purified water to the supply tank, and a second transfer pump intended to discharge water with sludge. 6. The device for electrochemical processing according to claim 1, characterized in that the said device for dumping sludge is located inside the space separated from the rest of the reactor by a delineating grid, and is equipped with a third transfer pump designed to discharge water with sludge. 7. The device for electrochemical processing according to claim 1, characterized in that in the upper part of the supply tank is additionally installed a source of ultraviolet radiation, in particular an LED with an ultraviolet radiation spectrum. 8. The device for electrochemical processing according to claim 1, characterized in that the consumable tank is additionally equipped with an overpressure sensor connected to the control unit.