Ion fan filter

FIELD: instrument making.

SUBSTANCE: ion fan filter comprises a corona-forming negative mesh electrode installed at the inlet, a downstream mesh non-corona-forming receiving electrode, collecting electrodes and a downstream non-corona-forming mesh electrode, at the same the non-corona-forming electrode is installed away from corona-forming needles by distance of 20 mm and is made with cells of 10x10 mm size, even collecting electrodes with length of 130 mm are connected to a negative potential of a power supply source and are made with spikes at one side. Besides, there is an additional non-corona-forming mesh electrode with cells of 10x10 mm size, which is fixed to uneven collecting electrodes and is connected to a positive potential and is installed at distance of 20 mm from corona-forming needles of collecting electrodes, the source of voltage is made for voltage of 10 kV.

EFFECT: increased efficiency of device by volume of treated medium, reduced cost of high-voltage power supply unit.

2 dwg

 

The invention relates to agriculture and can be used for disinfection of air in livestock buildings.

A device AS. the USSR №1141486, MKI3NT 23/00 to direct ionized air stream containing a number of parallel spaced electrodes, which are made in the form of conductive grids and alternately connected to different poles of a source of high voltage, and the electrodes connected to one of these poles of a voltage source, equipped with a conductive needles that are enshrined in the nodes of the lattices of these electrodes on the surfaces facing to the subsequent electrodes of the specified range, the other electrodes connected to the other pole of the voltage source, except for the far electrode is also provided with conductive needles enshrined in the knots of their gratings on the surfaces facing the smooth surfaces of adjacent electrodes.

The disadvantage of this device is the low speed of the generated air flow due to the different polarities of the corona electrodes. Low speed is generated air flow causes low performance of the device, which leads to an increase of their number to process a given volume of space.

Closest to the proposed device I have is ion fan-filter of the Russian Federation No. 2181466, IPC87 F24F 3/16, VS 3/09 containing installed at the entrance of the corona electrode negative and behind it is not the corona and collecting electrodes enclosed in the housing and electrically connected to the high voltage source. Corona negative electrode made in the form of a grid, in which the nodes perpendicular to its plane needles are directed to the corona electrode made in the form of a grid of metal wires with a cell size of 20 mm and set at a distance of 35 mm from the needle, followed by precipitation electrodes are made in the form of plates 170 mm, not perpendicular to the corona electrode and parallel to each other at a distance of 18 mm, with odd and even plates electrically interconnected.

The disadvantage of this ion fan filter is a low speed (v=1,2 m/s) generated air flow at a voltage of U = 18 kV, which leads to low productivity on the volume of processed air, and the high cost of high-voltage power supply.

The objective of this invention is to improve the device performance by volume of processing medium, as well as reducing the cost of high-voltage power supply.

The solution is achieved by the fact that the ion ve is tilator filter containing installed at the entrance of the corona net negative electrode behind it not the corona and collecting electrodes enclosed in the housing and electrically connected to the high voltage source, and not the corona electrode is selected from the corona needle at a distance of 20 mm and is made with a mesh size of 10×10 mm, even flat precipitation electrodes of a length of 130 mm is connected to the negative potential of the high voltage source and is covered on one side with sharp points, moreover, has not the corona mesh electrode with a mesh size of 10×10 mm, which is fastened to the odd flat collecting electrodes with a length of 170 mm and is connected to a positive potential and installed at a distance of 20 mm from the even flat collecting electrodes.

This invention is illustrated by drawings (1, 2).

Figure 1 presents schematically the device of the ion blower-filter.

Figure 2 presents the graphical dependence of the speed of the electric wind of the area of cells of the mesh electrodes.

Ion fan filter consists (1) of the odd flat collecting electrodes 1 170 mm, even flat collecting electrodes 2 a length of 130 mm, a net negative corona electrode 3 with the corona needles 4 and not the corona is escatih electrodes 5, 6, attached on both sides to the flat collecting electrodes 1. The electrodes 1, 2, 3, 5 are enclosed in the housing and electrically connected to the high voltage source. The corona power mesh electrode 3 with the needle 4 and even flat collecting electrodes 2 is supplied from the negative potential of the high voltage source, and the power of the odd flat collecting electrodes 1 and not corona mesh electrodes 5 and 6 from the positive potential of the high voltage source, in particular of 10 kV.

The proposed device is installed at your facility. In particular, when the voltage of 10 kV bit between the corona needle 4 net negative electrode 3 and not the corona wire mesh electrode 5, between the even-numbered flat collecting electrodes 2 and not more corona mesh electrode 6 is equal to 20 mm

The proposed device operates as follows.

In the discharge gap between the corona needle 4 corona net negative electrode 3 and not the corona wire mesh electrode 5 under the action of high tension at the tips of the needles happen ionization processes. The resulting negative ions and electrons will move under the action of Coulomb forces from needle 4 to the corona net electrode. Faced to the movement of the neutral air molecules and dust particles, they transmit some of their energy and in this way produced electric wind (moving air masses). The charged dust particles are deposited on a flat collecting electrodes 1, 2 and then moves the air, cleaned from dust particles. Getting bit in the gap between the even-numbered flat collecting electrodes 2 and not more corona mesh electrode 6 with a mesh size of 10×10 mm (figure 2), the air is again subjected to the processes of ionization and dissociation, in which the flow velocity is increased to 2.4 m/s, and the molecules of ozone O3. On the corona mesh electrode 6 we have Ozonesondes mixture, which is served in the room, where due to ozone processes of decontamination and deodorization of air.

Ion fan-filter containing installed at the entrance of the corona net negative electrode behind it necronemesis and precipitation electrodes enclosed in the housing and electrically connected to the high voltage source, characterized in that necronemesis electrode is selected from the corona needle at a distance of 20 mm and is made with a mesh size of 10×10 mm, even precipitation electrodes of the lengths of the th 130 mm is connected to the negative potential of the high voltage source and is covered on one side with sharp points, in addition, installed additional necronemesis mesh electrode with a mesh size of 10×10 mm, which is attached to odd precipitation electrodes 170 mm and is connected to the positive potential of the high voltage source and installed at a distance of 20 mm from even collecting electrodes.



 

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