摘要
紫外线杀菌是最有效的室内空气杀菌方式之一。本文对医用式、悬挂式、便携式和直立式4种不同类型的紫外线杀菌灯进行试验测试,测试时将被测试灯放置在7 m×3. 9 m×2. 6 m的实验房间,采用紫外辐射照度计(U-20)测量其紫外线辐射照度的分布。结果表明:医用式紫外杀菌灯在有效杀菌范围6 m^2内的平均强度为199μW/cm^2;壁挂式紫外杀菌灯有效杀菌范围为靠近其前方50 cm内,平均强度为115μW/cm^2;直立式杀菌灯紫外线强度以灯为中心呈圆状向四周辐射,在半径50 cm范围内平均强度为138. 9μW/cm^2;而便携式杀菌灯在其前方50 cm内有较高紫外线强度值。经测试表明辐射照度随着距光源距离的增大而逐渐降低,并且辐射照度降低后所对应的有效杀菌范围各不相同。
Ultraviolet germicidal lamp is one of the most effective tools for the indoor air sterilization.This study has tested four types of Ultraviolet germicidal lamp which are medical,wall-mounted,portable and upright.When tested,they were put in a 7m ×3.9m ×2.6m room,and measuring the distribution of ultraviolet intensity by using ultraviolet irradiance meter.The result indicates that average intensity of is 199μW/cm^2 in valid 6m^2 germicidal range.The average intensity of wall-mounted whose valid germicidal range is within 50cm near the front of the germicidal lamp is 115μW/cm^2.The average intensity of upright germicidal lamp radiating in all directions from the lamp center is 138.9μW/cm^2 and the portable germicidal lamp shows a more intense ultraviolet within 50cm in front of the germicidal lamp.
作者
李林蔚
陈雨嫣
李开龙
陈金培
张泽桂
杨艺
LI Linwei;CHEN Yuyan;LI Kailong;CHEN Jinpei;ZHANG Zegui;YANG Yi(School of Mechanical and Power Engineering,Guangdong Ocean University,Zhanjiang 524088,China)
出处
《中国照明电器》
2018年第11期18-22,共5页
China Light & Lighting
基金
广东省大学生创新创业训练项目(CXXL2016058)
