Low-temperature plasma waste gas treatment device based on electromagnetic induction coupling dual-medium

Abstract

The invention belongs to the field of waste gas treatment, and in particular relates to a device based on electromagnetic induction coupling dual-medium low-temperature plasma waste gas treatment, including an air inlet, a filter layer, an air uniform layer, a windshield, a low-temperature plasma generator group, a voltage regulator, and an air outlet. Among them, the low-temperature plasma generator group is composed of several low-temperature plasma generators, and each low-temperature plasma generator includes a shell, a coil, a low-voltage discharge electrode, a low-voltage discharge electrode dielectric layer, a high-voltage discharge electrode dielectric layer, and a high-voltage discharge electrode. electrode. The device places the low-temperature plasma generator group perpendicular to the airflow direction, which greatly increases the residence time of the exhaust gas in the plasma atmosphere. At the same time, it uses the energized solenoid coil to generate a magnetic field, and adjusts the strength of the magnetic field by adjusting the voltage of the energized solenoid coil. The charged high-energy ions excited by the low-temperature plasma are evenly distributed, the contact area with the exhaust gas is larger, and the exhaust gas treatment is more efficient.

Description

technical field [0001] The invention belongs to the field of waste gas treatment, in particular to a waste gas treatment device based on electromagnetic induction coupling dual-medium low-temperature plasma. Background technique [0002] The methods of industrial waste gas treatment include activated carbon adsorption method, catalytic combustion method, catalytic oxidation method, acid-base neutralization method, plasma method, etc. Among them, low-temperature plasma is the fourth state of matter after solid state, liquid state, and gas state. When the applied voltage reaches When the discharge voltage of the gas is exceeded, the gas is broken down to produce a mixture including electrons, various ions, atoms and free radicals. Although the temperature of electrons is high during the discharge process, the temperature of heavy particles is very low, and the whole system presents a low-temperature state, so it is called low-temperature plasma. Low-temperature plasma degrade...

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Problems solved by technology

[0005] Although the above-mentioned device improves the exhaust gas treatment effect to a certain extent, because the low-temperature plasma generator is parallel to the airflow direction, the exhaust gas stays in the plasma atmosphere for a short time, cannot be fully ionized, and the plasma space distribution is uneven, which will inevitably lead to Exhaust gas treatment effect is greatly reduced

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