The invention discloses a room-temperature
plasma torch array device simultaneously carrying out
fiber yarn modification and
sewage treatment. A plurality of rows of silica tubes internally provided with tubular
metal electrodes are inserted into the electrodes of a conductive
aqueous solution, one end of the silica tube penetrates the bottom of an organic-glass water tank and enters a modification room, the other end thereof is exposed out of the organic-glass water tank and sealed by a polyfluortetraethylene sleeve, the tubular
metal electrodes penetrate the polyfluortetraethylene sleeve and are communicated with an active gas source, the exterior of the silica tube is communicated with an
inert gas source, the bottom of the silica tube end is provided with through holes, the modification room is internally provided with
fiber yarns vertical to the holes at the bottom of each row of the silica tubes and having the number corresponding to that of the silica tubes, the tubular
metal electrodes are connected with a high-
voltage end after being parallelly connected, and the low-
voltage end is connected with the electrodes of the conductive
aqueous solution. The conductive liquid is taken as an external
electrode, has a cooling
discharge system, reduces
energy consumption, and avoids the generation of arc
discharge due to the
short circuit of the two electrodes caused by reflecting the
plasma; simultaneously, the liquid
electrode avoids the generation of medium fracture caused by different expansion coefficients of the
metal electrodes and the medium.