Patent ID: 8440142

Claim:
A dual-mode non-thermal plasma reactor comprising: an air-buffering chamber comprising: an air-buffering space defined therein; upper and lower openings both in communication with the air-buffering space; and a peripheral aperture in communication with the air-buffering space; a magnetic element provided on the air-buffering chamber and configured to close an upper opening of the air-buffering chamber; a first electrode disposed in the air-buffering chamber; a second electrode disposed in the air-buffering chamber opposite to the first electrode; a high-voltage power supply providing a high voltage between the first and second electrodes wherein the high-voltage power supply provides a first current between the first and second electrodes to provide streamer discharge in an air-swirling space in a first mode and provides a stronger second current between the first and second electrodes to provide spark discharge in an air passageway in a second mode so as to discharge two modes of a non-thermal plasma; and wherein an air-swirling chamber is located between the first and second electrodes, the air-swirling chamber comprising: a first isolating film covering on an internal side of the first electrode and wherein the first isolating film includes a respective tubular portion and a respective annular portion around the respective tubular portion and wherein the tubular portion of the first isolating film is inserted into the magnetic element through the upper opening of the air-buffering chamber; a second isolating film covering on an internal side of the second electrode wherein the second isolating film includes a respective tubular portion and a respective annular portion around the respective tubular portion and so that the air passageway is defined through the first and second isolating films; and an isolating tube placed between the first and second isolating films so that the air-swirling space and the air passageway are defined by the first and second isolating films and the isolating tube, the isolating tube comprising at least one tunnel in communication with the air-swirling space.