自由射流约束消杀风幕对不同粒径气溶胶的阻隔和净化效果研究

Study on the Barrier and Purification Effect of Free Jet Constrained Extinguishing Air Curtain on Different Particle Size Aerosols

针对于医院问诊室要求对新冠病毒阻隔效果近100%的问题,研究了自由射流约束消杀风幕对不同粒径气溶胶粒子的阻隔和净化效果。结果表明,风幕100%隔离病菌气溶胶的时间大于其开始捕集净化所需的时间时,即可保证医生不被感染。此外,对比了患者在不同呼吸活动下产生病菌气溶胶的行为,表明风幕对患者呼吸、说话及咳嗽时产生的病菌气溶胶隔离和净化效果更好。

In response to the hospital consultation room requirement of nearly 100%barrier effect on the new coronavirus,the barrier and decontamination effect of the free jet constrained extinguishing air curtain on different particle sizes of aerosol particles was studied.The results showed that the air curtain isolates 100%of the germ aerosols for a time greater than the time required for it to start trapping and decontaminating to ensure that the physician is not infected.In addition,comparing the behavior of patients producing germ aerosols under different breathing activities,it was shown that the wind curtain was more effective in isolating and decontaminating germ aerosols produced by patients during breathing,talking and coughing.