FIELD: plasmochemistry, plasma material processing, and plasma engineering; plasma chemical reactors.
SUBSTANCE: device implementing proposed method and designed for production, analyses, and application of low-temperature plasma has flask and current lead in the form of plate with hole and pipe attached on underside for communication with hydraulic pump. Flask is filled with electrolyte. Current lead is immersed in electrolyte through depth h. Water-cooled solid-state anode is disposed above electrolyte in a spaced relation to the latter. Pipe connection running from electrolyte supply system is brought to flask. Current-lead hole and anode are spaced apart so that distance from hole edge to anode is minimum 10 mm. Procedures of electrolyte delivery from supply system and its discharged by means of hydraulic pump provide for keeping current lead within flask below electrolyte level. Upper layers of electrolyte above current lead flow toward hole and through the latter enter pipe connection communicating with hydraulic pump. Then discharge gap length is set by vertical displacement of anode, and after that discharge is initiated between electrolyte and electrode. Electrolyte functions as cathode and water-cooled electrode, as anode. Electrolyte vapors initially condense on cold electrode. The latter perspires and liquid condensate leaks down over its surface. In order to prevent ingress of droplets in discharge gap between electrolyte and electrode, initial current density should be set at minimum 0.5 - 0.6 A/cm2. At such low current density steam flows rather intensively from cathode to anode and forces liquid condensate film away from anode surface upwards thereby ensuring firing in glow discharge mode.
EFFECT: enlarged discharge gap variation range, enhanced electrode current, current density, and intensity of discharge.
2 cl, 1 dwg
