Circuit generated low temperature plasma

Abstract

The invention discloses a circuit generated low temperature plasma, which comprises a rectifying circuit, a sine inverter circuit, a high-frequency step-up transformer and a discharge circuit. The rectifying circuit is used for converting a AC voltage into a DC voltage. The sine inverter circuit is used for converting the DC voltage into a certain frequency sine AC voltage. The high-frequency step-up transformer is used for boosting the sine voltage. The discharge circuit is used for forming a dielectric barrier corona discharge to generate the low-temperature plasma. According to the invention, the appropriate corona discharge and the dielectric barrier are combined to form stable and uniform than the dielectric barrier discharge, the energy utilization efficiency is higher than the dielectric barrier corona discharge of the corona discharge, and the circuit can be used to obtain the low temperature plasma. A disinfection box made by the circuit of the invention solves the problem that the traditional sterilization mode has high energy consumption, low efficiency, residual after sterilization, damage to the operating personnel and instruments, and influence on the surrounding environment.

Description

technical field [0001] The invention belongs to the field of gas discharge and application, and more specifically relates to a low-temperature plasma generation circuit, which is especially suitable for a low-temperature plasma disinfection box. Background technique [0002] Disinfection and sterilization is an important part of the daily work of medical units. Statistics show that in order to prevent infection, medical staff need to perform dozens to hundreds of disinfections within a working day, with an average of about once every ten minutes. The traditional liquid sterilization method needs to be rinsed for several minutes, and frequently used Disinfectants will cause adverse skin irritation to medical staff; medical utensils are often disinfected by high temperature and high pressure or drug fumigation, which consumes a lot of energy and is cumbersome to operate. A safe, simple, fast and low-temperature disinfection method with no residual toxicity has become a need. ...

AI Technical Summary

Problems solved by technology

Corona discharge is easy to realize at normal pressure, but its uniformity is poor, electron density and energy are low, active substances are relatively small, and it is not easy to obtain a large volume of plasma

The power density of the dielectric barrier discharge is moderate, and the low-temperature plasma generated by the discharge evenly fills the discharge gas gap, does not require vacuum equipment, and the discharge noise is small, but because the dielectric barrier discharge discharge in the air is composed of a large number of high-energy and dense discharge current filaments, Therefore, the low-temperature plasma produced by it has poor uniformity and poor stability

Images