Electrostatic dust collector for air purification

Abstract

The invention relates to an electrostatic dust collecting plant for air purification, comprising an insulating shell and an electrostatic field component fixed in the insulating shell, wherein the electrostatic field component comprises a pored dust collecting polar plate and a group of parallel corona wires, the windward side of the pored dust collecting polar plate is provided with a group of parallel grooves corresponding to the corona wires, the corona wires and the pored dust collecting polar plate are parallel to each other and are respectively positioned in the grooves in the pored dust collecting polar plate, the air-out side of the pored dust collecting polar plate is provided with a foaming metal mesh which is closely attached to, or is separated from, and is connected with the pored dust collecting polar plate by an electrical conductor, the corona wires are connected with the positive or the negative high tension electricity, and the pored dust collecting polar plate is grounded. The electrostatic dust collecting plant has the advantages of large dust collecting area, simple structure, small volume, low air resistance and production cost and easy cleaning, and can be widely applied to the field of air purification, in particular to an air purifier, or a purifier at the air hole of a central air conditioner.

Description

technical field [0001] The invention relates to an electrostatic dust collection device for air purification. Background technique [0002] At present, the methods for removing particulate matter from the air on the market mainly include filtration and electrostatic methods, among which the filtration method needs to consume filter materials and has a large wind resistance. The electrostatic dust removal method has the characteristics of small wind resistance and no consumables, so it is widely used in air purification products. [0003] There are many methods of electrostatic dust collection, among which the wire plate type is more common, and the manufacturing technology requirements of the wire plate type dust collection device are relatively high. To achieve a good dust collection effect, the distance between the dust collection plates must be reduced as much as possible, and the distance between It is small and easy to break down and spark. It is necessary to consider ...

AI Technical Summary

Problems solved by technology

[0003] There are many methods of electrostatic dust collection, among which the wire plate type is more common, and the manufacturing technology requirements of the wire plate type dust collection device are relatively high. To achieve a good dust collection effect, the distance between the dust collection plates must be reduced as much as possible, and the distance between It is small and easy to break down and spark. It is necessary to consider the dust collection part so that it is usually necessary to separate the discharge area and the dust collection area to use different voltages. The manufacturing cost of the power supply is also high, and the safety risk during use is also great, and this It is difficult to clean the dust collecting device, it is easy to break the corona wire, and it is also easy to cause the deformation of the plate to cause uneven spacing and spark; in order to make the charged particles better adsorb on the dust collecting plate, in the same Under the wind speed, the size of the dust collection plate in the direction of the wind speed must be made large, so that the volume of this electrostatic dust collection device is large and the manufacturing cost is high

There is also a combination of dust collection cylinder and discharge needle. This method has a small dust collection area and low efficiency. It also has the disadvantage of difficult manufacturing and high cost. It is rarely used

Chinese patent 200510063213.X also introduces a mesh electrostatic air cleaner, including air inlet, fan, electrostatic field components, high-voltage generator and exhaust duct, and its electrostatic dust collection part is provided with a wired type in the direction perpendicular to the air inlet. The discharge electrode and a group of parallel dust collection nets, the discharge electrodes are placed in parallel between the adjacent dust collection nets, the dust collection nets are made of metal wire mesh and aluminum foil net, the dust collection area is relatively large, but it corresponds to several lines A corresponding number of dust-collecting nets must be installed on the type discharge electrode. The product is bulky, troublesome to manufacture and inconvenient to clean. In addition, the corona wire does not have a corresponding discharge electrode to form a stable electric field, and the charging effect of particles is not good. When the product size is large, the net and Discharge wires are easily deformed, resulting in uneven spacing, which affects the safety of use

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