PLASMA STERILIZING-PURIFYING MACHINE AND METHOD FOR AIR STERILIZING AND PURIFYING

摘要

A plasma air sterilizing-purifying machine comprises a plasma reactor (1), a pulse power supply (2), a fan component (3), a control device (4), a power connector (7) and a shell (8). A positive electrode (101) with several nickel and chromium metal wires or metal belts is set in the plasma reactor (1). The pulse power supply (2) has a digital control circuit (204), in which an oscillator, an error amplifier and a PWM comparator are installed. The pulse power supply (2) can control the width of high voltage pulse. A method for sterilizing and purifying air has also been described. This kind of sterilizing-purifying machine has a prolonged service lifetime, and is capable of increasing plasma concentration, improving the sterilizing and purifying efficiency and saving energy.