超声雾化在非过滤式空气净化装置中的应用
Research on the Non-filter Air Cleaning Device Based on Ultrasonic Atomizer

总结了雾滴捕获细颗粒物的理论，利用超声雾化除尘技术和负离子技术设计了一种区别于传统空气净化器的非过滤式空气净化装置。在容积为8 m3的模拟实验舱内进行了验证实验，结果表明，该空气净化装置在20 min内就可以使模拟实验舱内的PM2.5浓度降低44.2%，在50 min内使模拟实验舱内的PM2.5浓度从382.7μg/m3降到低于初始值的水平，即72.3μg/m3，证实其对空气中的PM2.5浓度抑制具有较好的效果。该空气净化装置不需要定期更换滤网，须担心因滤网更换不及时而引起室内空气二次污染的问题，还具有调节室内湿度的功能。
China’s rapid expansion has tremendously increased the number of heavy haze days in the megacities and their vicinities. Indoor air quality and public health have also become significant research topics. This paper summarizes theories on cloud droplets capturing fine particulate matter, and describes the production of a non-filter air cleaning device based on ultrasonic atomization technology and negative ion technology. Then, several experiments were carried out in an 8m3 simulation cabin. Experimental results showed that the air cleaning device could decrease the PM2.5 concentration in the simulation cabin by 44.2% within 20 minutes, and down from 382.7μg/m-3 to 72.3μg/m-3 in about 50 minutes. This confirmed that the cleaning ability and efficiency of the air purification device was good, and the air purifying program was feasible. At the same time, there was no secondary pollution to the indoor air environment caused by a dirty filter that had not been replaced in time. Moreover, the air cleaning device has the function of regulating indoor humidity.