RU18653U1 - ELECTRIC FILTER - Google Patents

Abstract

1. An electrostatic precipitator containing a housing with a precipitation and corona electrodes located in it and a high-voltage power source, characterized in that the electrodes are made in the form of a cartridge, wherein the corona electrode is made of a conductor with a diameter of 0.05-0.15 mm, has a zigzag shape and is located between periodic precipitation electrodes at a distance from them equal to half the length of the precipitation electrodes in the direction of the filtered stream. 2. An electrostatic precipitator according to claim 1, characterized in that in the space between the corona and precipitation electrodes at the outlet of the stream, at a distance of 100-200 diameters of the corona electrode, additional focusing electrodes are electrically isolated from it and the precipitation electrodes. An electrostatic precipitator according to claims 1 and 2, characterized in that the poles of the high-voltage source are connected to the corona and precipitation electrodes through high-resistance resistors. 4. An electric filter according to claims 1 to 3, characterized in that the high-voltage power supply contains a rectifying element, a thyristor, a quenching resistor, a charging circuit consisting of a resistor and a capacitor, a high-voltage transformer and a voltage multiplier, and the quenching resistor is made in the form of an incandescent lamp located on external part of the source.

Description

The utility model relates to the field of gas flow purification from solid and aerosol impurities and can be used for air purification in residential and industrial premises.

Known electrostatic precipitator, including a housing, inside which are installed the precipitating and vertical corona electrodes (see AC of the USSR No. 469287, IPC WHO 3/34).

The disadvantage is low efficiency due to the small extent of the electric field acting on the deposited particles. In addition, the filter is unsafe in operation due to the high voltage supplied directly to the housing. The practical impossibility of cleaning the precipitation electrodes due to the tight adhesion of aerosols and particles to the electrode reduces the operational capabilities of the filter.

Also known is an electrostatic precipitator, including a housing, a system of precipitating.chip and corona electrodes with electric field. Before entering the electric field, the corona elements are installed. The distance of these corona elements from the corona electrodes is 1.5 - 1.7 from the discharge distance. The corona elements are located at the beginning, end of the electric field and in the row of precipitation electrodes along the field length. An electrostatic precipitator can improve the efficiency of gas purification and reduce the design of an electrostatic precipitator (see RF patent. No. 2136381, class IPC VOZZZ / 00)

However, this filter is also unsafe in operation and difficult to manufacture.

Closest to the proposed is an electrostatic precipitator containing corona and precipitation electrodes, an additional removable precipitation element from a dielectric sheet with a thickness of 20 1500 μm with a specific conductivity of 10 10 ohm / cm, for example paper, installed close to the precipitation electrode. During operation of the electrostatic precipitator, dust settles on a removable precipitating element and, as

its pollution 1 is disposed of. (See the application of the Russian Federation Ko93004233 according to class IPC VOSZZ / 14)

The disadvantage of this filter is the difficulty of replacing the electrodes and the inconvenience of operation associated with the need to replace the electrodes and a decrease in efficiency due to a decrease in the corona discharge current due to the insufficient conductivity of additional dielectric elements.

to:.,.,. , .. „„. „..... g (). (. 3/34

Electrostatic precipitator

The objective of the present invention is to increase the efficiency of filter slops, improve operational characteristics while ensuring safety.

The problem is solved in that in the electrostatic precipitator containing a housing with the precipitation and corona electrodes located in it, the high-voltage power supply, according to the invention, the electrodes are filled in the form of a cartridge., And the corona electrode is made of a conductor with a diameter of 0.05-0.15 mm. has a zitzag shape And is located between the periodic precipitating and electrodes at a distance from them, equal to half the length of the precipitating ectrodes in the direction of the filtered stream.

In addition, the electrostatic precipitator may contain additional focusing lenses, electrodes located in the space between the corona and precipitating electrodes: .1 With electrodes at the outlet of the stream at a distance of 100-200 diameters of the corona electrode that are electrically isolated from it and the precipitation electrodes.

The poles of a high-voltage source to ensure operational safety are connected to a corona and precipitation electroldirami, as well as high-resistance resistors.

The high-voltage power supply of the electrostatic precipitator contains a rectifying element, a thyristor, a quenching resistor, a charging circuit consisting of a resistor and a capacitor, a high-voltage transformer and a voltage multiplier, and the quenching resistor is made in the form of an incandescent lamp located on the outer part of the source.

The invention is illustrated by drawings, where in FIG. 1 shows a filter device, FIGS. 2-4 are a front view .; on the side and in the context of the cartridge, in Fig.5 is an electrical diagram of the filter, and in Fig.6 is the trajectory of charged particles in the space between the corona, focusing and deposition electrodes, where

1-high voltage power supply;

2-case electrostatic precipitator;

3-base cartridge;

4-umbrella

5-high voltage power supply output;

6-corona electrode;

7-insulators;

11- thyristor;

12-resistor; ,.

13- capacitor;

i 4-1 transformer;

15 quenching resistor;

16-voltage multiplier;

17-ohm resistor.

The filter consists of a high-voltage power supply 1, housing 2, cartridge base 3, umbrella 4, which can be located perpendicular to the plane of the housing 2, the high-voltage output 5 of the power supply 1 is in contact with the corona electrode 6, zigzag mounted on insulators 1, mounted on the base of the cartridge 3 symmetrically. In zigzags equidistantly placed precipitation electrodes 8, mounted on the base 3 of the cartridge and electrically connected to it. At insulators 7 at a distance of 00-200 diameters of the corona electrode in the direction of flow, focusing electrodes 9 are arranged, for example, in the form of cylinders whose diameter is 20-50 times the diameter of the corona electrode or horizontal plates of such .VM-. uiHpHiibi. The high-voltage filter power supply contains a direct device 10, thyristor 11. A charging circuit consisting of a resistor 12 and a capacitor 13, which, with the primary winding of the step-up high-voltage transformer 4, together with a quenching resistor 15 forms a shock excitation circuit. The secondary winding of the transformer 14 is connected to a voltage multiplier 16, the negative pole of which through a high-resistance resistor 17 is connected to a corona electrode 6., and the positive pole through another high-resistance resistor 17 with the filter housing 2 and, accordingly, with the base 3 of the cartridge and precipitation electrodes 8.

The electrostatic precipitator works as follows. A high-voltage voltage is generated 04 AC network 220 V, 50 Hz with a probe rectifier 0, a thyristor 11, a charging circuit 12.13, a shock excitation circuit consisting of a capacitor 13, the primary winding of a high-resistance transformer 14 to a quenching resistor 15. The resulting high voltage increases to the required) value using a multiplier 16 and through high-resistance resistors 17, for the purpose of safe operation of the filter, to the corona and precipitation electrodes. In the gaps between the corona electrode 6 and the precipitated electrodes 8, an electric discharge occurs, as a result of which dust particles, soot, and oil aerosols get into the space and get a charge under

By the action of electric fields of the corona, they rush to the precipitating electrons. At the same time, they acquire a charge and focusing electrodes, which enhance the e () (}) project of deposition at the output of the filtered stream by creating an additional electric field of high strength in the direction of the precipitation electrodes, since they acquire a charge of the same sign as the dust particles. , coils and aerosols. The primary winding of the transformer has a small number of wims and the amplitude of the current pulses reaches a large value, so that 15-20 W power is allocated to the halogen resistor 15 and a pump lamp of 40-60 W capacity can be used as it, except for the stabilizer function paooTti filter, acts as a light source.

As the cartridge becomes dirty, it is replaced with a new one.

Claims (4)

1. An electrostatic precipitator containing a housing with a precipitation and corona electrodes located in it and a high-voltage power source, characterized in that the electrodes are made in the form of a cartridge, wherein the corona electrode is made of a conductor with a diameter of 0.05-0.15 mm, has a zigzag shape and is located between periodic precipitation electrodes at a distance from them equal to half the length of the precipitation electrodes in the direction of the filtered stream.  2. The electrostatic precipitator according to claim 1, characterized in that in the space between the corona and precipitation electrodes at the outlet of the stream, at a distance of 100-200 diameters of the corona electrode, additional focusing electrodes are electrically isolated from it and the precipitation electrodes.  3. An electrostatic precipitator according to claims 1 and 2, characterized in that the poles of the high-voltage source are connected to the corona and precipitation electrodes through high-resistance resistors. 4. The electrostatic precipitator according to claims 1 to 3, characterized in that the high-voltage power supply contains a rectifying element, a thyristor, a quenching resistor, a charging circuit consisting of a resistor and a capacitor, a high-voltage transformer and a voltage multiplier, and the quenching resistor is made in the form of an incandescent lamp, located on the outside of the source.