A double-layer sleeve type corona plasma generator

Abstract

The invention relates to a double-layer sleeve type corona plasma generating device comprising a gas buffering chamber, an outer-layer processing chamber and an inner-layer processing chamber. A gas inlet is provided on the outer side of the gas buffering chamber. An insulation baffle is provided on the inner side of the buffering chamber. Airway through holes are provided on the baffle. Gas to be processed sequentially enters the outer-layer processing chamber and the inner-layer processing chamber through the airway through holes. When the gas is completely processed, the gas is discharged from a gas outlet connected to an end of the inner-layer processing chamber. According to the invention, with the buffering chamber, the gas to be processed can be uniformly and stably delivered in the processing chambers. The chambers adopt a coaxial multi-pin-plate structure, such that electric field unevenness coefficient is high, discharge voltage is low, and thus operation energy consumption is reduced. Also, voltage adjustable range is wide, and application scope is wide. With the inner-outer double layer structure, low temperature plasma dedusting and waste gas degradation are separated, such that the influence of dust in waste gas to waste gas molecule degradation is avoided, and energy utilization rate is improved. Also, reactor structure is compact. The device provided by the invention is suitable for the fields such as waste gas treatment, sterilization and disinfection, ozone synthesis, and the like.

Description

technical field [0001] The invention belongs to the technical field of low-temperature plasma environment application, and in particular relates to a double-layer sleeve type corona plasma generating device. Background technique [0002] With the continuous expansion of human production activities and living activities, the amount and types of "three wastes" wastes are increasing rapidly. Pollution not only causes serious damage to the ecological environment, but also brings immeasurable harm to human beings themselves. It is especially worth pointing out that, with the frequent occurrence of smog weather across the country in recent years, people's daily life and physical and mental health have been seriously affected, one of the main sources of smog - the treatment of industrial waste gas has also been raised to the national development strategic heights. However, the traditional waste treatment technologies such as physical, chemical treatment and combustion are far fro...

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Problems solved by technology

[0004] At present, the bottleneck problem that restricts the large-scale application of corona plasma in industrial waste gas treatment is: the composition of industrial waste gas is complex, in addition to containing various types of toxic and harmful inorganic or organic waste gas molecules, it often also contains a large amount of aerosols, droplets, dust, etc. Dirty particles, the energy consumption of single-stage reactor is too high, and the long-term violent discharge will seriously damage the reactor, while multi-stage reactors also have high energy consumption, large equipment footprint, and investment in large-scale industrial applications. Large and other disadvantages

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