influence Wet electrostatic precipitator Main factors of machine efficiency
The influence of electrostatic voltage, water volume and dust concentration on wet electrostatic precipitation efficiency is positive, that is, the dust removal efficiency increases with the increase of voltage, water volume and dust concentration. Voltage has the greatest impact on dust removal efficiency, followed by water volume, and dust concentration has the smallest impact. The combination of static electricity and water mist can significantly improve the dust removal efficiency.
The role of water in wet electrostatic precipitation
Wet type Electrostatic precipitator The water in is mainly in the atomized water droplets. According to domestic research, water mist has a series of effects on the improvement of dust removal efficiency of wet electrostatic precipitator. The main mechanisms are as follows:
The water mist can keep the discharge electrode clean and keep the corona vigorous all the time. The mist particles hit the dust collector to form a thin and uniform water film, which can prevent the "secondary splash" of low specific resistance dust, quench the quality of high specific resistance dust, and prevent the "back corona" phenomenon. For dust with strong viscosity, electrode bonding can be prevented. It is also suitable for collecting flammable and explosive dust.
The discharge electrode also acts as an atomizer. The same power supply can realize corona discharge, water atomization, water mist and dust particle electrification, and realize the organic combination of static electricity and water mist.
The spray is sprayed directly to the high charge discharge electrode, which makes the water mist collide, intercept, absorb and condense in the electric field with high charge mass ratio, and greatly improves the dust removal efficiency.
The water mist hits the dust remover to form water flow, which keeps the dust remover clean all the time, saves the vibration device, and avoids a series of problems caused by dust removal caused by vibration.
Spray the spray to the discharge electrode and corona area to further atomize the spray. Static electricity will not directly contact the plastic spraying device, so there is almost no insulation problem. This method is completely different from the "corona discharge water atomization" dust removal technology, because water and electricity are in direct contact, making it almost impossible for insulation to be used in industrial applications.
Burr electrode can generate strong electrostatic field, and has good corona discharge capacity. Electrostatic and water mist work together, and has high dust removal efficiency.