The most important Internal Part of an ESP is the Discharge Electrode.
Common types of discharge electrodes include:
- Spiral wires (Widely used in Indian Power Plants)
- Twisted wire pairs
- Barbed discharge wires
- Rigid masts
- Rigid spiked pipes
Discharge electrodes emit charging current and provide voltage that generates an electrical field between the discharge electrodes and the collecting plates which forces dust particles in the gas stream to migrate to the collecting plates and precipitate onto the plates.
Spiral Wire Discharge Electrodes : Material widely used – SS-904L / SS316L Above both material have high anti corrosive characteristic.
An Emitting Electrode is the Heart of the Electrostatic Precipitators. The corona power is generated in the emitting electrodes which begins the first and the most important process of an ESP – Ionization.
As such, it is of the highest importance that the Emitting Electrodes of the right quality is sourced from proven manufacturers only.
The individual discharge electrodes – spiralized 2.7 mm diameter are secured within a rigid frame-work. The tension is approximately 150 N.
The individual length has been maximized at 5.0 m by introducing an appropriate number of horizontal framing elements between the electrodes. These elements are rapped with tumbling hammers in the same way as the collecting electrodes.