Envitech's Wet Electrostatic Precipitator is designed to meet the needs
of the most demanding applications. Particle collection occurs in an electric
field. This minimizes energy costs compared to scrubbers and baghouses,
which require large amounts of energy to overcome the resistance to air
flow. Envitech's Wet Electrostatic Precipitators may also be designed with
an optional scrubber section for removal of acid gases. This makes the unit
the most versatile air pollution control system on the market.
The Envitech Wet Electrostatic Precipitator is designed to be either
a down-flow or up-flow, concentric, tube-type precipitator. The Wet Electrostatic
Precipitator uses high-intensity ionization disks mounted on a central
discharge electrode. This geometry concentrates the charging field in
the zone between the disc and the collection tube. This disk-in-tube geometry
allows for the formation of a stable, intense, electrostatic field for
particle charging. The field strength can be maintained at high levels
with minimal sparking, resulting in the highest available efficiency.
The greater the electrostatic field strength, the greater the particle
migration velocity (velocity component towards the collection tube).
Increased migration velocity achieves higher particle collection efficiency
with less collection area than conventional precipitators. Less collection
area means a smaller, less expensive unit.