Research on the sterilization effect of hydrogen peroxide and equipment optimizatio

Abstract

Hydrogen peroxide sterilization is widely used in food packaging, public health and other fields. The sterilization effect is related to the vaporization spray time and nozzle parameters. This paper uses AnsysFluent software to mathematically simulate the flow field and concentration distribution of vaporized hydrogen peroxide in the sterilization space; and verify the correctness of the numerical simulation results through field experiments. UDF module is used to describe the component concentration of the nozzle, and the distribution of vaporized hydrogen peroxide is analyzed by changing the nozzle spray angle and spray speed of the equipment, and the spray time T required to reach the standard concentration in the sterilization space is the shortest and the hydrogen peroxide dosage Q is the minimum For the goal, optimize the design parameters. The results show that when the spray speed is 4.8m/s and the spray angle is -18°, the spray time required to reach the sterilization standard is the shortest, and the amount of hydrogen peroxide is the least. This article provides a theoretical basis for the improvement of vaporized hydrogen peroxide sterilization equipment.