【摘要】 UF₆泄漏会产生兼具化学危害与辐射危害的液滴型气溶胶,人员吸入会造成危害。对气溶胶进行压制是常用控制手段,在常规放射性气溶胶压制剂的基础配方中添加4%的NaCO₃等针对UF₆特性的专用助剂,研制出具有针对性的气溶胶压制剂。实验设计加工了以压缩空气作动力,以超声雾化喷嘴为主要部件的流体动力型超声雾化装置,选用SiCl₄作为模拟试剂,用其模拟UF₆泄漏并进行压制试验,结果表明压制剂在1 min内的压制效果达到自然沉降12 h以上的效果。更多还原

【Abstract】 Leakage of UF₆ can form droplet-type aerosols,causing chemical and radiological hazards to workers.Atomization suppression method to control those aerosols is commonly used. By adding NaCO₃ and other auxiliaries to the basic formula,a targeted aerosol inhibitor for UF₆ is obtained. Compressed air is used as the power and an ultrasonic atomizing nozzle is used as the main component of a fluid-powered ultrasonic atomizing device. SiCl₄ is used to simulate UF₆ leakage. The results show that the suppression effect of the aerosol inhibitor in 1 minute is equivalent to the effect of 12 hours natural sedimentation.更多还原