Low-temperature plasma generation device and gas processing system

Abstract

The invention provides a low-temperature plasma generation device and a gas processing system. The low-temperature plasma generation device comprises at least one columnar discharging electrode component and at least another one same discharging electrode component or a columnar or grid-shape metal ground, wherein the at least one columnar discharging electrode component is formed by combining metal and a medium, the at least another one same discharging electrode component or the columnar or grid-shaped metal ground is arranged in parallel, the discharging electrode component is connected toa high-frequency and high-voltage power supply and is used for discharging the discharging electrode component or the columnar or grid-shaped metal ground arranged in parallel, so that low-temperatureplasma reaction is generated on a gas in a gap between the discharging electrode component and the same discharging electrode component or between the discharging electrode component and the columnaror grid-shaped metal ground. With the low-temperature plasma generation device provided by the scheme of the invention, enough large low-temperature plasma reaction gap is provided, so that a strongoxidization agent such as ozone is efficiently generated to eliminate a harmful substance in the gas, and an effect of killing the harmful substance in the gas for many times is achieved.

Description

technical field [0001] The present application relates to the field of gas treatment, in particular to a plasma generator and a gas treatment system. Background technique [0002] In order to remove harmful organic pollution atmosphere, unpleasant smell, and pathogenic microorganisms in the air, existing household air purifiers often use physical methods such as filter screen filtration and activated carbon adsorption. However, the microscopic size of the organic small molecules of the gaseous pollutants in the air is on the order of nanometers, and cannot be filtered out through the air flow filter. Adsorption is easy to accumulate and become saturated, and frequent replacement is required to increase the cost. [0003] In addition, there is a form of photocatalyst, which irradiates the surface coated with titanium dioxide by the ultraviolet component in the light source, and generates a small amount of hydroxyl radicals based on catalytic excitation. Because the proporti...

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Problems solved by technology

[0004] There are also forms of negative oxygen ions, using DC high-voltage tip electric field discharge to excite ionized electrons to generate a small amount of negative oxygen ions, but the strength of the DC electric field is more than an order of magnitude weaker than that of the AC electric field of Dielectric Barrier Discharge (DBD). , and the DC electric field intensity is inversely proportional to the curvature of the discharge surface, the area of ​​the tip is small, resulting in a small range of strong electric field, therefore, the negative oxygen ions generated are very rare, and it is impossible to output higher electric energy to act on the treated gas, and the processing efficiency is extremely low

[0005] Ozone and hydroxyl radicals are extremely strong oxidants, which can break and dissolve the molecular chains of harmful pollutants in the air, and kill harmful microorganisms such as germs, viruses, fungi, etc., but they have not been effectively used yet.

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