The working principle of wet electric demister and its corona discharge mechanism are the key to understanding its efficient demisting performance.
Wet electric demister is a device that uses electric field to remove droplets and particles in gas. Its working principle is based on corona discharge and electric field force. The high-voltage electrostatic device applies voltage to the electrode to form an electric field, so that the droplets and particles in the gas entering the electric field are charged, and then captured on the dust collecting electrode under the action of the electric field force, and finally removed by the flushing system.
In wet electric demister, corona discharge is the key step to generate an electric field. When the high-voltage electrostatic device applies a high enough voltage to the electrode, the air molecules near the electrode are ionized, generating a large number of electrons and positive and negative ions. This process is corona discharge, which forms an electric field and provides the necessary electrons and ions for the subsequent charging of droplets and particles.
After the gas containing droplets and particles enters the electric field, the droplets and particles are quickly charged under the action of electrons and ions. Under the action of the electric field force, the charged droplets and particles move to the electrode with the opposite polarity, that is, they are captured by the dust collecting electrode.
The dust collecting electrode is a key component in the wet electric demister, which is responsible for capturing the charged droplets and particles. A continuous water film is formed on the dust collecting electrode, which washes the captured droplets and particles into the liquid collecting tank below, thereby achieving the purpose of demisting.
The corona discharge mechanism is affected by many factors, including electrode material, electrode shape, voltage, gas composition and temperature. Changes in these factors will affect the intensity, stability and efficiency of corona discharge, thereby affecting the demisting performance of the wet electric demister.
In order to improve the demisting efficiency of the wet electric demister, a variety of methods can be used to optimize the corona discharge mechanism. For example, select suitable electrode materials and shapes, adjust the voltage size and waveform, optimize gas composition and temperature, etc. These measures can enhance the intensity, stability and uniformity of corona discharge, thereby improving the demisting efficiency.
Due to its advantages of high efficiency, stability and wide adaptability, wet electric demister is widely used in waste gas treatment in chemical, electric power, metallurgy and other industrial fields. Especially in situations where it is necessary to remove tiny droplets and particulate matter in waste gas, wet electric demister plays an irreplaceable role.
