The invention provides a spray washing device of a wet type electric dust remover. The spray washing device comprises a desulphurization process
water source, a water conveying pipeline, an electric adjustment valve (I), a spraying
water pipe, a
nozzle, an electric adjustment valve (II), a circulating
water pipe, a filter, a circulating water pump, a connection
pipe, a liquid suction
pipe, a circulating water tank, a circulating water tank
sewage drain pump, a circulating water tank
sewage drain
pipe, a desulphurization
sewage pool, a sewage tank sewage drain pipe, a sewage tank sewage drain pump, a sewage tank and an ash bucket sewage drain pipe, wherein the electric adjustment valve (I) on the water conveying pipeline is in a
closed state after circulating water normally works; when the dust remover needs to be supplemented with process water, the electric adjustment valve (I) is opened, and the electric adjustment valve (II) is closed, so that a circulating water
system stops working; at the moment, the wet type electric dust remover performs high-pressure washing on the inner wall of an
anode tube and the surface of a
cathode wire through the process water; the electric adjustment valve (II) on the circulating
water pipe is in a normally opened state, so that the circulating water can be always cyclically sprayed, and a layer of uniform water film can be always formed on each of the inner wall of the
anode tube and the surface of the
cathode wire; the dust removal effect of the dust remover can be enhanced.