The Design and Theoretical Analysis of Major Components of Pulse Light Sterilization Equipment

The cold sterilization technique is of great significance for improving food quality and safety. The article comprehensively analyzes the design requirements of pulse light cold sterilization, and determines the major components’ design parameter of the sterilization equipment. The equipment could use the pulse xenon lamp as light source, a dual power capacitor pulse circuit, a processing room of circular counter-refacing to gather and seal the light and Single Chip Micyoco to achieve automatic control. The input voltage of the equipment is 800∼3000 V, the flash duration is 15∼20 μs, the lighting frequency and condensation rate can be adjusted, the distance between light and test specimen is 0∼120 mm. The design of the equipment facilitates the processing and controlling. The sterilizing tests using pulsed light sterilization equipment show that the equipment design is feasible.