RU2287491C1 - Installation for electrochemical treatment of water - Google Patents

Abstract

FIELD: agriculture; devices for electrochemical treatment of water.

SUBSTANCE: the installation is pertaining to the electrochemical treatment of water used, for example, as a means of adjustment of the acid-alkali and oxidation-reducing means for the technological water solutions applied in the farm-production for the presowing cultivation of the seeds and used for the medical purposes in the domestic life. The installation contains the cylindrical body made out of the dielectric material partitioned by the diaphragm made out of the microporous plastic into the chambers with the disposed in them anode and cathode. The cathode is made in the form of the group of the cylindrical rods out of the corrosion-resistant steel connected by the ring-shaped current-conducting wire and mounted along the internal perimeter of the body. In the central part of the body there is the anode consisting of the group of the cylindrical rods made out of the corrosion-resistant steel coupled by the common current-conducting wire. The water-conductive connecting pipe is made in the form of the conical diffuser with the dissector in the middle. The terminals for connection of the cathode and the anode are disposed on the surface of the conical diffuser.

EFFECT: the invention ensures the effective electrochemical treatment of water used in the farm-production for the presowing cultivation of the seeds and for the medical purposes in the domestic life.

2 dwg

Description

The invention relates to the electrochemical treatment of water, used, for example, as a means of regulating the acid-base and redox properties of technological aqueous solutions used in agricultural production for presowing treatment of seeds and medicinal purposes in domestic conditions.

A device is known for electrochemical processing of a liquid, comprising a dielectric housing divided by a diaphragm into an anode and a cathode chamber with an anode and a cathode respectively placed thereon and connected to a direct current source, while the electrode chambers are connected by a transfer channel, the input of which is located in the cathode chamber at its bottom near the diaphragm, and the output is made in the anode chamber at the upper edge of the electrode, and in the channel at its ends there are mesh electrodes connected to an additional source through constant current so that the mesh electrode at the channel inlet is the cathode, and at the output the anode, the negative pole of the additional current source is connected to the positive pole of the main current, and the transfer channel is made in the device’s casing (SU, copyright certificate No. 1634643. M.cl. ⁵ C 02 F 1/46. Device for electrochemical activation of a liquid // Yu.G. Zadorozhny, V. M. Bakhir, L. E. Spector, BC Belyakov, N. I. Lysenko, A. A. Podkolozin, N. N. Dmitriev, V.N.Stefan and Yu.A. Grachev. Declared 02.12.1986; publ. 03.1991, bull. No. 10).

The disadvantages of the known device are low productivity due to the limited contact area of the electrodes with the treated fluid, a significant distance between the cathode and the anode, which leads to increased energy consumption. This does not provide the specified parameters of catholyte (pH and mV) and anolyte. Reducing the distance between the electrodes leads to a decrease in the volume of the processed fluid.

A portable device for electrochemical processing of liquids is also known, including a housing divided by a diaphragm into a closed inner and open outer chambers with anode and cathode located in them, while the housing is cylindrical, the diaphragm is installed in its lower part, the anode is perforated and installed under the diaphragm in closed chamber, the cathode is placed in an open chamber under the diaphragm and mounted with the possibility of vertical movement, and the working surfaces of the electrodes and diaphragms are made in the form truncated cones with a vertex angle of 60 ... 120 °, and the anode is formed as a ring or spiral (SU, Inventor's Certificate №1611881. M.kl. ⁵ C 02 F 1/46. A portable device for electrochemical processing of liquid // In .M. Brednev, P. A. Kirpichnikov, A. G. Liakumovich, I. I. Ponikarov, L. M. Ayupova, M. R. Sezemova, B. S. Fridman and R.Z. Muratova. 1985; publ. 12/07/1990, bull. No. 45).

The disadvantages of the described device include the limited contact area of the elements with the processed fluid. This also leads to a significant cost overrun of electrical energy and does not provide the specified parameters of the anolyte and catholyte fluids.

We adopted this design of the device as the closest analogue.

The problem to which the invention is directed is to increase productivity by increasing the contact area of the electrodes with the liquid being treated.

The technical result is a reduction in energy consumption to obtain a given activation potential of the source liquid (water).

The specified technical result is achieved by the fact that in the known installation for the electrochemical treatment of water, comprising a housing divided by a diaphragm into chambers with an anode and a cathode placed in them, according to the invention, the cathode is made in the form of a group of cylindrical rods made of corrosion-resistant steel, connected by an annular conductor and installed along the inner perimeter of the housing, the anode is made in the form of a group of cylindrical rods made of corrosion-resistant steel, connected by a common current lead and installed in the central part ti housing, the anode and cathode while the chamber separated by a diaphragm of a microporous plastic, and feeding canal tube is formed as a conical diffuser with a center divider, and the anode and cathode terminals arranged on a surface of a conical diffuser.

The invention is illustrated by drawings.

Figure 1 shows a transverse vertical section of an installation for electrochemical water treatment.

Figure 2 is the same, a plan view of the installation with the dismantled cover and divider.

The installation includes a housing 1 made of dielectric material, which is closed by a cover 2. Cover 2 is also made of dielectric material. A diffuser water supply pipe 3 and a divider 4 are made on the lid 2. Negative electrodes (cathode 5) and positive electrodes (anode 6) are fixed to the lid 2, while the negative electrodes 5 are mounted using a thread on the ring current lead 7, and the positive electrodes 6 are connected by a thread with common conductor 8.

For drainage of water with a positive potential (anolyte), a drainage pipe 9 is provided, and for drainage of water with a negative potential (catholyte) - a drainage pipe 10. For supply of a negative potential, a conductor 11 is connected to the conductor 7. The conductor 11 is connected to a current source by terminals 12. To supply a positive potential, a conductor 13 is used, connected to the current lead 8. The conductor 13 is connected to the current source via terminal 14. The negative (cathode 5) and positive (anode 6) electrodes are divided by the floor a permeable cylindrical diaphragm 15 made of microporous plastic.

Installation works as follows.

Water is supplied into the internal cavity of the installation through a conical diffuser in the cover 2 as a water supply pipe 3 with a divider 4. Last water is sent to the housing 1, filling the chambers where the cathode 5 and anode 6 are placed.

Simultaneously with the water supply, the supply of negative and positive potentials to the terminals 12 and 14 is turned on. The water flow passes between the electrodes 5 and 6. Under the influence of the electric current arising between the anode 6 and the cathode 5, the fluid is electrochemically processed. Water acquires a negative potential in the cathode part of the chamber, and positive in the anode part. Liquids in the form of anolyte and catholyte are discharged through the outlet pipes 9 and 10. The latter are collected and served for use in plants for the treatment of seeds and plants for their intended purpose.

Claims (1)

Installation for electrochemical water treatment, comprising a housing divided by a diaphragm into chambers with an anode and a cathode located in them, characterized in that the cathode is made in the form of a group of cylindrical rods made of corrosion-resistant steel, connected by an annular conductor and installed along the inner perimeter of the housing, the anode is made in the form of a group of cylindrical rods made of corrosion-resistant steel, connected by a common current lead and installed in the central part of the housing, while the anode and cathode chambers are separated by diaphragms wit of microporous plastic, the water supply pipe is made in the form of a conical diffuser with a divider in the center, and the terminals of the anode and cathode are placed on the surface of the conical diffuser.

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