Plasma generator excited by high-frequency alternating current

Abstract

The invention relates to the technical field of air purification, in particular to a plasma generator excited by high-frequency alternating current. The plasma generator comprises a shell and an ion generation assembly arranged in the shell, an air inlet and an air outlet are formed in the shell, and the ion generation assembly alternately generates positive ions and negative ions by adopting a high-frequency alternating current excitation power supply; the plasma generator further comprises a wind speed sensor, a controller and a power supply control circuit, the wind speed sensor is electrically connected with the controller, and the controller is electrically connected with the power supply control circuit. The mode that the high-frequency alternating-current excitation power supply alternately generates positive ions and negative ions is adopted, so that the positive ions and the negative ions are basically mixed uniformly when being generated, the probability that the positive ions and the negative ions diffused into the air through wind attract each other when being attached to floating bacteria is higher, and the annihilation sterilization and disinfection efficiency of the positive ions and the negative ions is higher.

Description

technical field [0001] The invention relates to the technical field of air purification, in particular to a plasma generator excited by high-frequency alternating current. Background technique [0002] At present, the air purification and disinfection methods in crowded indoor public places include ultraviolet lamps, ozone, high-voltage electrostatic adsorption and spraying liquid agents, etc., but the above-mentioned traditional technical means cannot coexist with humans and machines when dealing with harmful gases and sterilization, and the by-products exceed the standard. And other problems, the traditional method has been unable to meet the requirements. Since the 1970s and 1980s, research on the application of plasma in many fields such as disinfection and pollution control has begun to flourish, especially for use in human settlements. [0003] The current plasma generator is a power frequency DC high-voltage scheme. One generating pole is the positive pole and the ot...

AI Technical Summary

Problems solved by technology

In addition, the arrangement of the discharge body also directly affects the quantity and quality of the plasma and the annihilation efficiency of positive and negative ions. The arrangement (structure) of the discharge body in the existing plasma generator easily leads to uneven distribution of plasma. , the amount of plasma generated is small, the sterilization efficiency is low, and the accumulation of discharge produces ozone.

And the use environment of the product is changing, especially the change of wind speed will directly affect the ion annihilation efficiency and affect the effect of sterilization and disinfection

[0004] Therefore, there is an urgent need for a plasma generator, which can solve the problem of single discharge body arrangement structure of the existing plasma generator, resulting in uneven distribution of plasma, small amount of plasma generation, low annihilation efficiency of positive and negative ions, generation of ozone by concentrated discharge, and A plasma generator that can be automatically adjusted according to environmental changes, especially wind speed changes, to solve the problems of unstable ion generation and low ion annihilation efficiency due to changes in the environment (especially wind speed)

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