The invention relates to a simple cold
plasma jet flow generating device for the barometric suspended
electrode, which belongs to the technical field of the
plasma discharging reactor. The cold
plasma jet flow generating device is characterized in that a main body of the device is a
millimeter magnitude
quartz tube, a gas inlet opening is arranged at one end connected with a gas supplying source, and a
jet flow outlet opening is arranged at the other end; a pair of needle electrodes are embedded into the
quartz tube above the jet flow outlet opening, both the electrodes are symmetrical in the radial direction, the
needle electrode at one side connected with an
alternating current power supply is adopted as a power
electrode, and the other
electrode at the other side is suspended in the air and adopted as the suspended electrode; through applying
voltage, the electrodes
discharge to generate plasmas which are sprayed out of the tube to form the jet flow through the action of flowing air. The jet flow generating device has the advantages that the
needle electrode structure can reduce the generation of the jet flow and maintain the
voltage; the suspended electrode is favorable not only for enhancing the
utilization factor of the energy, but also for effectively controlling the discharging intensity and maintaining the stable discharging; the non-pressure
plasma jet flow is characterized in low temperature, large length, low produced and maintained
voltage, long continuous working time and simple structure.