What is an electrostatic polarizer?

Static electrostatic precipitator is a processing equipment designed specifically for improving the filtration efficiency of melt blown non-woven fabric filter materials. The electrostatic polarizing filter material has the advantages of low resistance, adsorption of extremely small particles, and improved purification efficiency of extremely small particles. The programmable power frequency withstand voltage test device for electrostatic polarizer equipment has the characteristics of small size, light weight, compact structure, complete functions, and easy use. Electret machines implant electrons into materials through an polarizing rod, polarizing the material and allowing for long-term storage of static electricity. For example, materials in an electret microphone can store static electricity for more than 5 years or even longer.

Static electrostatic precipitator is suitable for power, industrial and mining, scientific research and other departments to conduct power frequency withstand voltage tests and DC leakage tests on various high-voltage electrical equipment, electrical components, and insulation materials. It is an essential instrument in high-voltage testing. The impact of the polarization effect of meltblown fabrics can be mainly divided into two aspects: material structure properties and polarization process. Fiber fineness is one of the important parameters that determine the filtration efficiency and pressure loss of filter materials. When the amount of filter material is the same, the finer the fibers, the larger the surface area of the filter material, the higher the filtration coefficient, and the better the adsorption effect.

After electrostatic polarization treatment, the meltblown fabric increases electrostatic adsorption during air filtration. It can directly attract charged particles and capture them by Coulomb force, or induce neutral particles to produce polarity and capture them. This can more effectively filter submicron particles in gas, greatly enhancing filtration efficiency without increasing air resistance. In terms of the polarization process, high-voltage charging, reducing the charging distance, appropriately extending the charging time or using high-temperature charging, and heat treatment after polarization can improve the charge storage stability of the material to a certain extent. At the same time, attention should be paid to sealing and storing the materials, avoiding direct contact with humid environmental conditions as much as possible, which is beneficial to maintaining the charge stability of the materials to a certain extent.