Liquid-phase low-temperature plasma generator

Abstract

The invention provides a liquid-phase low-temperature plasma generator. The generator comprises an insulating housing, a cathode bar, an anode ring and a clapboard, wherein a medium outlet is formed in one end of the insulating housing, and medium inlets are formed in the other end of the insulating housing; the cathode bar, the anode ring and the clapboard are arranged in the insulating housing; one end of the anode ring is fixed at the end, in which medium inlets are formed, of the insulating housing; a plurality of water passing holes are formed in the clapboard and the cathode bar is sleeved with the clapboard; the anode ring is arranged at the end, in which the medium outlet are formed, of the insulating housing; the cathode bar and the anode ring are coaxial. When the generator provided by the invention is in use, mediums enter the generator from two medium inlets, pass through a third-stage clapboard with holes at a high speed to have a cavitation effect so as to generate a large amount of micro-bubbles, and then flows to a discharge area; the electrodes have high-voltage discharge under the action of a pulsed high voltage to generate plasma which is used for degrading organic pollutants and killing microorganisms and has a very good effect.

Description

technical field [0001] The invention relates to the fields of liquid-phase plasma discharge technology and hydraulic cavitation technology, in particular to a liquid-phase low-temperature plasma discharge generator. Background technique [0002] In 1985, Dr. Clements and Dr. Sato pioneered the application of high-voltage pulses to underwater electrode discharges to generate OH free radicals to degrade organic pollutants in water and kill microorganisms. The study found that the length of the discharge current channel depends on the magnitude of the input voltage, pulse width, electrode polarization and conductivity of water. It is confirmed that under the action of pulse high pressure, when bubbles are blown in, the large bubbles are separated into many microbubbles. When oxygen is exposed to the deionized water in the reactor through the hollow part, the gas is discharged and dissociated, and ozone is detected in the liquid phase. Its concentration depends on the voltage, ...

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Problems solved by technology

[0006] Aiming at the problems existing in the prior art, the present invention provides a liquid-phase low-temperature plasma discharge generator to solve the degradation problem of organic pollution in water

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