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Working principle of high voltage electrostatic purification of cooking fume

Author: sky blue environmental protection Release date: 09, 28 2018, 17:40:26 676 browse
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Working principle of high voltage electrostatic purification of cooking fume

The high voltage electrostatic method is driven by a 220V high voltage through a transformer to a voltage of up to 10000 volts, and then converted to DC by a rectifier. A strong electric field is formed between the two plates, so that the particles in the flue gas are charged. The charged fume particles are charged by gravity, electrode attraction and wind field dynamics. Due to the increase of particle size and the increase of particle size, large particles are greatly affected by electric field force, and the removal rate of aerosol pollutants is relatively high.

The electrostatic fume purifier uses high frequency and high voltage power supply device, and the oil fume is filtered by the fan under the impetus of the fan to uniformly enter the high-voltage electrostatic field, and is connected to the electrode correspondingly and connected to the high voltage electrostatic field, and the electric field is formed by electrified. The oil smoke mixture produces electrostatic deposition, the flue gas is ionized, and the oil is precipitated in the oil collecting cylinder, and the corona working area is discharged. At the same time, most of the harmful gas entering the device is oxidized and decomposed, and the odor is removed. Finally, the purified gas is discharged into the atmosphere.

Corona working area is the core component of high pressure static point capturing oil fume equipment. Corona discharge is the main discharge form of electrostatic deposition. The space existing in the store air will corona when the charge accumulates to a certain extent. The electric field results are serrated and flat, which can increase the power supply current and greatly improve the purification efficiency. When the small particles with contaminants pass through the electric field, the free electrons and negative ions will collide and adsorb on the lampblack particles continuously in motion. The electrified pollutants arrive at the positive electrode and release negative charge in a very short time under the action of electric field. The pollutants themselves gather on the positive pole, and the tiny oil particles are ionized and charged with gas. It is collected by the adsorption unit, condenses into larger droplets under the action of gravity and liquid tension, flows along the wall pipe, and is discharged into the oil collecting tank at the bottom collecting port, and is regularly discharged. The clean air is discharged through the outlet, and the purification efficiency of the high-voltage electrostatic cleaner is more than 90%.

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