Electrostatic pptn. installation - in which voltage drop on electrode gaps falls to zero on change of supply voltage

摘要

Installation for electrostatic precipitation comprises two electrode gaps, each formed by receiving and corona electrodes and a high-voltage rectifying unit embodied on the basis of a transformer. The high voltage winding of the transformer is provided with a gate circuit having two opposing gates and connected in parallel to the high voltage winding, the common point of the gates being electrically connected with the receiving electrodes. The high voltage winding of the transformer is also connected via linear electric elements to the corona electrodes to provide for the formation of a discharge circuit for each of the electrode gaps alternately via the high voltage winding of the transformer and the other electrode gap. The voltage drop on the electrode gaps falls to zero at each period of change of supply voltage, resulting in discharge of the layer of high-resistance dust settled on the electrodes, elimination of "inverse corona", and an increase in the efficiency of high resistance dust pptn.