首页 > 论文 > 中国激光 > 41卷 > 1期(pp:116002--1)

亚微米粒子虚拟冲击器的研制

Development of a Virtual Impactor for Submicron Particles

  • 摘要
  • 论文信息
  • 参考文献
  • 被引情况
  • PDF全文
分享:

摘要

亚微米虚拟冲击器是实现高灵敏度生物气溶胶光学在线监测的前提,是当前的研究热点之一。基于空气动力学理论与相关研究基础,设计了一种切割粒径为0.4 μm的亚微米级粒子虚拟冲击器,利用计算流体动力学(CFD)分析软件Fluent以及离散相模型对虚拟冲击器结构的入口喷嘴与收集孔间距、收集孔径和流量比等各种设计参数进行模拟与分析,得到了一组优化设计参数并制作了虚拟冲击器实物。测试结果表明,该虚拟冲击器具有良好的浓缩效果,对0.37、0.5、0.7 μm聚苯乙烯乳胶球(PSL)粒子的收集效率等参数与仿真结果基本吻合,验证了流体动力学分析方法的可行性。该虚拟冲击器切割粒径的实验测试结果达到0.4 μm,满足实际应用需求。

Abstract

A virtual impactor for submicron particles is prerequisite for bio-aerosol optical online monitoring and it is a hot research topic. Based on aerodynamics and past research work, a 0.4-μm-cutpoint virtual impactor is designed with the help of a commercial computational fluid dynamics (CFD) package, Fluent. Discrete phase model (DPM) is applied to simulate and analyze the effect of nozzle-to-collection probe distance, collection probe diameter and minor-to-major flow ratio. The virtual impactor with optimum design parameters is fabricated and tested. According to the experimental results, the virtual impactor can collect 0.37 μm, 0.5 μm and 0.7 μm PSL microspheres efficiently as desired, which proves that the CFD method is practical. Cutoff diameter of the virtual impactor can reach 0.4 μm, which is fit for practical applications.

广告组1 - 空间光调制器+DMD
补充资料

中图分类号:TN247

DOI:10.3788/cjl201441.0116002

所属栏目:光学设计与制造

基金项目:上海市自然科学基金(11ZR1441700)

收稿日期:2013-08-16

修改稿日期:2013-08-20

网络出版日期:--

作者单位    点击查看

张佩:中国科学院上海光学精密机械研究所, 上海 201800中国科学院大学, 北京 100049
赵永凯:中国科学院上海光学精密机械研究所, 上海 201800
杨巍:中国科学院上海光学精密机械研究所, 上海 201800
黄惠杰:中国科学院上海光学精密机械研究所, 上海 201800

联系人作者:张佩(zhp19860626@163.com)

备注:张佩(1986—),男,博士研究生,主要从事精密光电测控技术方面的研究。

【1】David S Ensor. Aerosol Science and Technology: History and Reviews[M]. Minnesota, USA: Research Triangle Institute Press, 2011. 509-525.

【2】Wathes Christopher M, Cox C Barry. Bioaerosols Handbook[M]. Chelsea: Lewis Publishers, 1995. 11-14.

【3】Richard DeFreez. LIF bio-aerosol threat triggers: then and now[C]. SPIE, 2009, 7484: 74840H.

【4】Lan Tiange, Xiong Wei, Fang Yonghua, et al.. Study on passive detection of biological aerosol with Fourier-transform infrared spectroscopic technique[J]. Acta Optica Sinica, 2010, 30(6): 1656-1661.
兰天鸽, 熊伟, 方勇华, 等. 应用被动傅里叶变换红外光谱技术探测生物气溶胶研究[J]. 光学学报, 2010, 30(6): 1656-1661.

【5】Cai Shuyao, Zhang Pei, Zhu Linglin, et al.. Research on detection technology of bio-aerosols with tryptophan intrinsic fluorescence measurement[J]. Acta Optica Sinica, 2012, 32(5): 0512009.
蔡舒窈, 张佩, 朱玲琳, 等. 基于色氨酸本征荧光测量的生物气溶胶检测技术研究[J]. 光学学报, 2012, 32(5): 0512009.

【6】Virgil A Marple, Chung M Chien. Virtual impactors: a theoretical study[J]. Environmental Science & Technology, 1980, 14(8): 976-984.

【7】M C Kim, K W Lee. Design modification of virtual impactor for enhancing particle concentration performance[J]. Aerosol Science & Technology, 2000, 32(3): 233-242.

【8】J Keskinen, K Janka. Virtual impactor as an accessory to optical particle counters[J]. Aerosol Science & Technology, 1987, 6(1): 79-83.

【9】Virgil A Marple, Benjamin Y H Liu, Robert M Burton. High-volume impactor for sampling fine and coarse particles[J]. Journal of the Air & Waste Management Association, 1990, 40(5): 762-767.

【10】Liang Xiaojun. Design on the Low Concentration Bioaerosol Concentrator and Its Verification of Capacity[D]. Beijing: Chinese Center for Disease Control and Prevention, 2011. 25-26.
梁晓军. 一种低浓度微生物气溶胶浓缩器的设计和性能验证[D]. 北京: 中国疾病预防控制中心, 2011. 25-26.

【11】Wu Hao, Zhu Tuo, Kong Yan, et al.. Study on the absorption and fluorescence spectra of lactobacillus plantarum[J]. Acta Optica Sinica, 2010, 30(1): 262-266.
武浩, 朱拓, 孔艳, 等. 植物乳杆菌的吸收和荧光光谱研究[J]. 光学学报, 2010, 30(1): 262-266.

【12】Ronald G Pinnick, Steven C Hill, Stanley Niles, et al.. Real-time measurement of fluorescence spectra from single airborne biological particles[J]. Field Analytical Chemistry and Technology, 1999, 3(4-5): 221-239.

【13】Richard DeFreez, Ezra Merrill, Sam Albanna, et al.. Design considerations and performance characteristics of AirSentinel, a new UV-LIF bio-aerosol threat detection trigger[C]. SPIE, 2005, 5990: 59900O.

【14】Jung Hyeun Kim, George W Mulholland, Scott R Kukuck, et al.. Slip correction measurements of certified PSL nanoparticles using a nanometer differential mobility analyzer (Nano-DMA) for Knudsen number from 0.5 to 83[J]. Journal of Research of the National Institute of Standards and Technology, 2005, 110(1): 31-54.

【15】Zhou Deqing. A Course of the Science of Microbiology[M]. Beijing: Higher Education Press, 2002. 9-10.
周德庆. 微生物学教程[M]. 北京: 高等教育出版社, 2002. 9-10.

【16】Billy W Loo, Christopher P Cork. Development of high efficiency virtual impactors[J]. Aerosol Science & Technology, 1988, 9(3): 167-176

【17】He Cunxing, Zhang Tiehua. Hydraulic and Pneumatic Transmission[M]. Wuhan: Huazhong University of Science and Technology Press, 1998. 244-245.
何存兴, 张铁华. 液压传动与气压传动[M]. 武汉: 华中理工大学出版社, 1998. 244-245.

【18】Sun Yunqiang, Xi Fengjie, Xu Xiaojun, et al.. Model for the optical field and fluent field coupling effects[J]. Chinese J Lasers, 2011, 38(2): 0202013.
孙运强, 习锋杰, 许晓军, 等. 内通道流场与光场能量耦合的数值模拟[J]. 中国激光, 2011, 38(2): 0202013.

【19】Zhu Gangxian, Li Dichen, Zhang Anfeng, et al.. Influence of deposited layer′s structure on flow field of coaxial powder feeding nozzle[J]. Chinese J Lasers, 2010, 37(6): 1636-1642.
朱刚贤, 李涤尘, 张安峰, 等. 沉积层结构对同轴送粉喷嘴粉末流场的影响规律[J]. 中国激光, 2010, 37(6): 1636-1642.

【20】Ruan Hongyan, Lü Jianjun, Yang Bo, et al.. Analysis of flow field for supersonic nozzle in laser cutting[J]. Chinese J Lasers, 2009, 36(5): 1233-1237.
阮鸿雁, 吕建军, 杨波, 等. 激光切割超音速喷嘴的流场特性[J]. 中国激光, 2009, 36(5): 1233-1237.

【21】Zhu Hongjun, Lin YuanHua, Xie Longhan. Fluent 12 Fluid Analysis and Engineering Simulation[M]. Beijing: Tsinghua University Press, 2011. 187.
朱红钧, 林元华, 谢龙汉. Fluent 12流体分析及工程仿真[M]. 北京: 清华大学出版社, 2011. 187.

引用该论文

Zhang Pei,Zhao Yongkai,Yang Wei,Huang Huijie. Development of a Virtual Impactor for Submicron Particles[J]. Chinese Journal of Lasers, 2014, 41(1): 0116002

张佩,赵永凯,杨巍,黄惠杰. 亚微米粒子虚拟冲击器的研制[J]. 中国激光, 2014, 41(1): 0116002

被引情况

【1】卜一川,赵永凯,陈正岩,张佩,黄惠杰. 基于光散射的实时气溶胶粒子形状识别技术研究. 中国激光, 2015, 42(4): 413003--1

【2】饶志敏,华灯鑫,何廷尧,乐静. 激光诱导生物气溶胶荧光雷达的设计与数值仿真. 光学学报, 2015, 35(10): 1028001--1

您的浏览器不支持PDF插件,请使用最新的(Chrome/Fire Fox等)浏览器.或者您还可以点击此处下载该论文PDF