一种低浓度微生物气溶胶浓缩器的设计和性能研究
发布时间：2018-08-11 10:00
【摘要】：目的设计可与Biosampler采样器联合使用的虚拟浓缩器,并对其性能进行研究。方法根据需要确定设计流量,设计浓缩器主要参数,人工发生不同粒径的NaCl-癸二酸二异辛酯(DEHS)粒子,对其浓缩性能进行评价,在生物暴露舱内发生一定浓度的白色葡萄球菌,对浓缩器收集生物性粒子的性能进行评价。结果浓缩器的实际切割粒径为2.16μm,对3μm以上粒子的收集效率可达90%以上,使用浓缩器的Biosampler采样器与未使用时相比可采集到更多的白色葡萄球菌,可达3.2倍。结论本研究提出的虚拟浓缩器的设计方法可行,浓缩器的各项指标与理论值相接近,可与Biosampler采样器相联合用于低浓度微生物气溶胶的采集。
[Abstract]:Aim to design a virtual concentrator which can be used in conjunction with Biosampler sampler and to study its performance. Methods according to the need to determine the design flow rate, the main parameters of the concentrator were designed, the (DEHS) particles with different diisooctyl NaCl-Sebacate were artificially produced, and the concentration performance was evaluated, and a certain concentration of Staphylococcus albicans was found in the biological exposure chamber. The performance of the concentrator in collecting biological particles was evaluated. Results the actual cutting diameter of the concentrator was 2.16 渭 m, and the collection efficiency of the above 3 渭 m particles was more than 90%. The Biosampler sampler using the concentrator could collect more staphylococcus albicans (3.2 times) than when the concentrator was not in use. Conclusion the design method of the virtual concentrator proposed in this study is feasible. The indexes of the condenser are close to the theoretical values and can be combined with the Biosampler sampler for the collection of low concentration microbial aerosols.
【作者单位】： 昆山市疾病预防控制中心食卫环卫科;中国疾病预防控制中心环境与健康相关产品安全所;
【基金】：国家“十一五”科技支撑课题(2006BAI19B04)
【分类号】：R318.6
本文编号：2176663
[Abstract]:Aim to design a virtual concentrator which can be used in conjunction with Biosampler sampler and to study its performance. Methods according to the need to determine the design flow rate, the main parameters of the concentrator were designed, the (DEHS) particles with different diisooctyl NaCl-Sebacate were artificially produced, and the concentration performance was evaluated, and a certain concentration of Staphylococcus albicans was found in the biological exposure chamber. The performance of the concentrator in collecting biological particles was evaluated. Results the actual cutting diameter of the concentrator was 2.16 渭 m, and the collection efficiency of the above 3 渭 m particles was more than 90%. The Biosampler sampler using the concentrator could collect more staphylococcus albicans (3.2 times) than when the concentrator was not in use. Conclusion the design method of the virtual concentrator proposed in this study is feasible. The indexes of the condenser are close to the theoretical values and can be combined with the Biosampler sampler for the collection of low concentration microbial aerosols.
【作者单位】： 昆山市疾病预防控制中心食卫环卫科;中国疾病预防控制中心环境与健康相关产品安全所;
【基金】：国家“十一五”科技支撑课题(2006BAI19B04)
【分类号】：R318.6
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