Study On The Transport Properties And Measurement Of Charged Particles Of Electrostatic Precipitator

Electrostatic Precipitators of today are difficult to meet the increasingly strict environment treating standard because the volume of Electrostatic Precipitator is huge, which means that the price of initial investment, operation cost are extremely high, and the efficiency of dust removing for micro dust is too low. In order to improve the transport rate of charged particles and the efficiency of Electrostatic Precipitator, and to induce the loss in recombination and sedimentation, a new approach is investigated by introducing an applied force of horizontal gas into a strong ionization discharge field and models of influence of average electric field intensity, ionization density and gas flow rate on the transport rate of particles are established based on the key NSFC Project "Study of Method and Application of Gas Molecules Ionized with Strong Electric Field at High Pressure"(No.60471036) and "Studies on Charging and Sedimentation of particles in AC electric field of Electrostatic Precipitator" (No.50578020). At the same time, a new method of detecting the electron density in high pressure is investigated. The main achievements are as follows:1) The analog results for charging region and condensation region at different flow velocities indicate that there are no remarkable local irregularities or significant difference, and that the turbulent flow at a high speed is less apparent than that at a low speed, which causes charged particles to be easily transported out from the electric field. Therefore, the density of charged particles is increased, which is beneficial to the efficiency of Electrostatic Precipitator;2) At the gas velocity of 5m/s and 10m/s, 20°C and 1atm, the influence of average electric field intensity and ionization density on transport rate of particles is less than 1 order of magnitude; The influence of particle momentum on transport rate is more than 2 orders of magnitude. Therefore, it is one of the methods for increasing charged particle density by increasing their momentum;...