Cascade arc plasma generator

A cascade arc plasma generator, comprising a cathode structure, a cascade structure, and an anode structure sequentially connected along a plasma jet direction;

• wherein the cathode structure comprises a cathode assembly and a cathode seat, the cathode assembly comprises an arc starting pin seat and a plurality of arc starting pins, and the plurality of the arc starting pins are parallel to each other and are connected to one end of the arc starting pin seat at intervals;
• the cathode seat is provided with an ionization chamber, the ionization chamber runs through the cathode seat in the plasma jet direction, and the arc starting pin seat is partially disposed in the ionization chamber, thereby the plurality of the arc starting pins are located in the ionization chamber, and ends of tips of the plurality of the arc starting pins are disposed towards the cascade structure, and the ends of the tips of the plurality of the arc starting pins are located in a same plane, and the plane is perpendicular to the plasma jet direction;
• and
• the cathode seat is further provided with a plurality of gas inlet channels configured to deliver gases into the ionization chamber;
• the anode structure comprises an anode body, the anode body is provided with an anode channel running through an upper surface and a lower surface thereof;
• and
• the cascade structure comprises a plurality of cascade pieces, the plurality of the cascade pieces are sequentially stacked along the plasma jet direction and disposed between the cathode seat and the anode body;
• each of the cascade pieces is provided with a cascade channel, the cascade channel runs through the cascade piece in the plasma jet direction, thereby when the plurality of the cascade pieces are stacked, a plurality of the cascade channels are sequentially communicated to form a plasma channel;
• and the ionization chamber, the plasma channel, and the anode channel are provided opposite to each other and sequentially communicated.