Experimental Study On The Air Disinfection By Pulsed Xenon Lamp

With the frequent outbreak of various epidemic diseases in recent years,people pay more and more attention to the control of indoor microorganisms.As a new cold sterilization technology,pulsed xenon lamp has been proven to have a good sterilization effect on microorganisms.Now,due to technical barriers and price factors,the application of pulsed xenon lamp devices in the air purification field has not begun,and the most mature product technologies are owned by foreign manufacturers.Therefore,this paper studies the characteristic parameters of pulsed xenon lamp unit power supply and the environmental parameters of its application to provide some guidance for the localization of pulsed xenon lamp unit.This paper used experimental method to study the pulsed xenon lamp input voltage,capacitance,flash frequency and air velocity on the impact of pulsed xenon lamp sterilization.In addition,in order to select a better combination of parameters,orthogonal experiments were designed based on the four factors selected,and the energy consumption of the pulsed xenon lamp device in each condition was tested.In the meantime,the sterilization experiments of pulsed xenon lamp and ultraviolet lamp were carried out in the air duct.After the better power parameters were selected,the bacteriostasis experiment of the experimental cabin was carried out to further verify the bactericidal ability of the pulsed glare unit.The results show that:(1)The input voltage of pulsed xenon light has a quadratic function with the bactericidal effect,the higher the voltage is,the stronger the bactericidal ability is.The bactericidal effect increases linearly with the increasing of the capacitance.For the flash frequency,with the increase of the frequency of bactericidal ability to enhance the rate gradually decreased;and the wind speed shorten the microbial radiation dose,the germicidal efficiency was linear with the increase of the wind speed decline.(2)The influence of the four factors selected in the experiment on the germicidal effect of pulsed xenon lamp is input voltage,capacitance capacity,flash frequency,air velocity in descending order,and the evaluation method of sterilization effect of pulsed xenon lamp was put forward,combined with its bactericidal effect and energy consumption,indicating that the choice of power parameter Medium-level voltage,smaller capacitance,and flash frequency of about 2Hz are more energy efficient.(3)Under the same input power,the sterilization efficiency of pulsed xenon lamp in the air duct is about 20% higher than the ultraviolet light.When it comes to the test chamber,the plused xenon lamp can be about 9 minutes earlier than the ultraviolet light in completely sterilization.