How does an electric precipitator work?
What is electrostatic precipitator used for?
Originally designed for recovery of valuable industrial-process materials, electrostatic precipitators are used for air pollution control, particularly for removing harmful particulate matter from waste gases at industrial facilities and power-generating stations.
What is the principle of electrostatic precipitator?
Electrostatic precipitators operate on the principle of the attraction of a charged particle for an oppositely charged collector. They have been used for both collecting particles for further analysis and for controlling particulate emissions from sources.
What is the function of ESP?
The electronic stability program (ESP®) supports the driver in nearly all critical driving situations. It comprises the functions of the antilock braking system (ABS) and the traction control system, but can do considerably more. It detects vehicle skidding movements, and actively counteracts them.
What is ESP in boiler?
Electrostatic precipitators (ESP) collect dust in the flue gas produced by boiler, etc. Mitsubishi Power contributes to air pollution control at thermal power plants, steel plants , and various industrial plants.
Do electrostatic precipitators create ozone?
Electrostatic precipitators create ozone because of the high‐voltage currents they pass through the air. The current is used to give an electrical charge to dust particles that are drawn into the devices by an electric fan.Dec 21, 1970
What is corona effect in ESP?
In practice, the effect of a dust layer affects the performance and operation of an ESP in a very complicated way. The corona current flowing through the dust layer generates a voltage which tends to decrease the effective voltage between the electrodes.
What is the advantage of electrostatic precipitator?
Advantages of electrostatic precipitator:
It can be used for the collection of both dry and wet impurities. It has low operating costs. The collection efficiency of the device is high even for small particles. It can handle large gas volumes and heavy dust loads at low pressures.
What does ESP stand for?
ESP is an abbreviation for extrasensory perception.
What are the parts of ESP?
The main components of an ESP consist of collecting electrodes/plates, discharge electrodes, inlet and outlet perforated screens, insulators for the discharge electrodes, rappers, and one or more electrical transformers.
What is rapping system in ESP?
Rapping is the process by which electrodes and particles are broken apart by vibrations from the rappers. Often used in electrostatic precipitators, rappers relapse the caked on dust layer which then descends into a hopper.
What is a precipitator in a power plant?
An electrostatic precipitator is a type of filter (dry scrubber) that uses static electricity to remove soot and ash from exhaust fumes before they exit the smokestacks. This one common air pollution control device. Most power stations burn fossil fuels such as coal or oil to generate electricity for use.Sep 3, 2018
What is discharge electrode?
Discharge electrodes (DE) emit charging current and provide voltage that generates an electrical field between the discharge electrodes and the collecting plates. The electrical field forces dust particles in the gas stream to migrate toward the collecting plates.
What is spark rate in electrostatic precipitator?
Large amounts of particulate can create excessive sparking inside the precipitator. Sparking is a normal phenomena where the current of the high voltage areas rushes to a grounded surface. Normal spark rates are less than 100 sparks per minute.
How does an electrostatic precipitator work?
- An electrostatic precipitator is a device that removes suspended dust particles from an exhaust or gas by using a high-voltage electrostatic charge to electrically charge the dust particles. Particles are collected on charged plates, which attract the charged dust particles.
How does an electrostatic smoke precipitator work?
- Electrostatic smoke precipitators work by forcing dirty flue gas (the gas escaping from a smokestack) past two electrodes (electrical terminals), which take the form of metal wires, bars, or plates inside a pipe or smokestack. The first electrode is charged to a very high negative voltage.
What is electrostatic precipitation?
- electrostatic precipitation. Air purified by electrostatic precipitation is passed through an ionizer, which gives a positive charge to dirt particles that will then adhere to a negatively charged collector.