纳火气溶胶去除方法的研究.PDFVIP

CNIC-01896 IAE-0222 纳火气溶胶去除方法的研究 俞晓琛洪JI顶章曹增吴杰张秀峰 (中国原子能科学研究院，北京，102413) 摘要 研究建立了中国实验快堆纳火气溶胶的去除方法o 方法采用湿 式除尘器与干式过滤器相结合的方法，建立了一套实验装置o 当纳 气溶胶入口浓度大于7mg/L 时，湿式除尘器的净化效率大于85% , 而总的净化效率为 96% 士2%; 当纳气溶胶的入口浓度大于 lmg/L 而小于 7mg/L 时，湿式除尘器的净化效率大于 74% ，而总净化效率 为 87% 土2%; 当入口气溶胶浓度小于 1 mg/L 时，湿式除尘器的净 化效率为 40% ，而总的净化效率只有 50% 左右。气溶胶经过净化 后，通风系统的出口气溶胶浓度小于 0.5 mg/L 文章还对气溶胶的 o 行为做了一些初步的研究。 关键词:气溶胶净化效率湿式除尘器高效过滤器 103 The Research of Removing Sodium Aerosol (In Chinese) YU Xiaochen HONG Shunzhang CAO Zen WU lie ZHANG Xiufeng (China Institute of Atomic Energy , Beijing , 102413) ABSTRACT This paper represents A method to remove sodium combustion aerosol of CEFR is represented. A aqueous scrubber and a filter is used in this method. An experiment facility was built up. When the entrance concentration of sodium aerosol is up to 7 mg/L , the efficiency of scrubber is up to 85 %,and the total efficiency is 96 %士2 %; When the entrance concentration of sodium aero- sol is up to 1 mg/L and below 7 mg/L ,the efficiency of scrubber is up to 74% , and the total efficiency is 87%士2 %; when the entrance concentration of sodi- urn aerosol is below 1 mg/L , the efficiency of scrubber is about 40 %, and the total efficiency is about 50 %. After cleaning , the ventilation exit concentration of sodium aerosol is below to o. 5 mg/L. The act of sodium aeros