The invention discloses a self-cleaned
plasma air conditioning method and device. A
plasma dust collection principle is that PM2.5 dust
haze particulates are supplied with charges and are captured bya
high voltage electric field. Three problems can be caused, namely, PM2.5
particulates of larger sizes can be easily charged and captured, very fine PM2.5
particulates such as dust
haze smaller than0.3 micrometers can easily escape from a
plasma air conditioning electric field of an
HEPA filtering net; after the dust
haze is adsorbed to a dust collection
electrode for a certain amount, a dust collection effect can be rapidly degraded if the filtering net is not cleaned in time;
ozone and nitric oxides are inevitable byproducts in plasma air
discharge. By adopting the method and the device disclosed by the invention, dust haze particulates are combined and aggregated with water mist to form large clusters which are further fed into a plasma charge zone and a
dust charge zone, and then theparticulates can be easily charged and collected by the
electric field; in addition, the water mist captured onto a dust collection
electrode forms water droplets which flow down from the dust collection
electrode, then the dust haze particulates on the dust collection electrode can be carried away, and a function of cleaning the dust collection electrode can be achieved; charges are adsorbed bythe water mist, so that the
generation rate of
ozone and nitric oxides is reduced, and in addition, due to
photocatalytic decomposition of the
ozone and the nitric oxides, the ozone and the nitric oxides can be remarkably degraded, and the concentrations can be remarkably reduced.