技术中心

【英文篇名】 Experimental research on atmospheric dust leakage of HEPA filters,part 5 of the series of research practice of the national standard task group for the Code for cleanroom construction and acceptance test 【作者中文名】 姚丹; 王荣; 李书云; 许钟麟; 张益昭; 张彦国; 牛维乐; 曹国庆; 冯昕; 【作者英文名】 Yao Dan Wang Rong LI Shuyun Xu Zhonglin Zhang Yizhao Zhong Yanguo Niu Weile Cao Guoqing Feng Xin China Academy of Building Resesrch; Beijing; China; 【作者单位】 中国建筑科学研究院; 【文献出处】 暖通空调, Heating Ventilating 大气尘浓度; 检漏; 【英文关键词】 HEPA filter; atmospheric dust concentration; leakage test; 【摘要】 实测了人扎针孔0.6 mm和1.0 mm时高效过滤器对于大气尘的泄漏浓度,当上游大气尘浓度只有300～400粒/L时,下游仍可测出5～10粒/L的泄漏。 【英文摘要】 Uses atmospheric dust as upstream aerosol challenge and pricks a pinhole of diameter 0.6 mm or 1.0 mm on a HEPA filter.The results show that leakage can still be detected with 5～10 particles per liter sampled downstream when the upstream concentration is as low as 300～400 particles per liter.