邹亚雄，任晓庆，刘伟光，刘 巍，张泽武，闫 骏
(青岛市计量技术研究院 环境监测仪器产业计量与测试中心,山东 青岛 266000)
DOI:10.13732/j.issn.1008-5548.2022.05.014
收稿日期： 2022-03-29， 修回日期：2022-05-19，在线出版时间：2022-08-15 09:12。
基金项目：山东省重大科技创新项目，编号：2019JZZY010419。
第一作者简介：邹亚雄(1963—)，男，高级工程师，研究方向为计量技术、气溶胶测量与标准化评定。E-mail：zouyaxiong@qdimt.com。
通信作者简介：任晓庆(1986—)，男，工程师，硕士，研究方向为流体计量技术、多相流测量。E-mail：renxiaoqing@qdimt.com。
摘要：为提高VSCC型PM2.5粒子切割器对颗粒物的分离能力，采用Sigmoid-8092、 Logistic和Gompertz等3种常用的S型函数对实验数据进行回归分析并对比拟合精度，借助实验手段研究切割器不同结构对50%切割粒径Da50和几何标准偏差σg的影响，基于结构协同的方法改进切割器性能并进行实验验证。结果表明：Sigmoid-8092函数的线性回归拟合度R2≥0.991,拟合精度相比其他2种较高；改进后的切割器将VSCC型的Da50由2.32～2.52μm调整到2.52～2.57μm,σg由1.15～1.30缩小至1.15～1.25。Sigmoid-8092方程可作为切割曲线拟合的函数形式；单因素结构变量难以实现优化σg的同时不改变Da50,协同切割器进口直径Din和锥底直径B能够改进切割器性能；提高回旋段雷诺数Reann有利于σg的改善，提高Reann的有效方式是减小Din的值；确定Din尺寸时可采用等同雷诺数方法。
关键词：粒子切割器；切割性能；结构协同；等同雷诺数法
Abstract：In order to improve the particle separation performance of VSCC PM2.5 particle cutter, three commonly used S-style functions of Sigmoid-8092,Logistic and Gompertz were adopted to regress experiment data and the fitting accuracies were compared, experimental method was used to study the effects on 50% cut-off diameter Da50 and geometric standard deviation σg from different structures of cutter, the cutter was improved by structures coordination method and an experiment verification was done. The results show that the fitting accuracy is higher of Sigmoid-8092 compared with the other two kinds of functions, as its linear regression fitting degree R2≥0.991. The improved cutter changes the Da50 from 2.32～2.52 μm of VSCC to 2.52～2.57 μm, and the σg is reduced from 1.15～1.30 to 1.15～1.25. Sigmoid-8092 function is suitable as the fitting function for penetration curve. Signal structure parameter can hardly optimize σg while not changing Da50, and the coordination between inlet diameter Din and cone bottom diameter B can realize the purpose of penetration performance improvement. Increasing the circle round Reynolds number Reann is beneficial to the improvement of σg, and the effective way to increase Reann is reducing the value of Din. The equivalent Reynolds number method can be used to determine Din dimension.
Keywords：particle cutter; penetration efficiency; structures coordination; method of Reynolds number equivalent
参考文献（References）：
[1]JOEL S.Harvesting and long term exposure effects in the relation between air pollution and mortality[J].American Journal of Epidemiology,2000,151(5):440-448.
[2]阚海东,陈秉衡.我国大气颗粒物暴露与人群健康效应的关系[J].环境与健康杂志,2002,19(6):422-424.
[3]魏爱丽,孟紫强,牛瑞芳.沙尘暴细颗粒物对人外周血淋巴细胞微核形成的影响[J].环境科学学报,2006,26(3):509-514.
[4]谢志祥,秦耀辰,李亚男,等.基于PM2.5的中国雾霾灾害风险评价[J].环境科学学报,2017,37(12):4503-4510.
[5]张文阁,高思田,宋小平,等.细颗粒物PM2.5浓度测量及计量技术[J].中国粉体技术,2013,19(6):69-72.
[6]KENNY L C,GUSSMAN R A,MEYER M.Development of a sharp-cut cyclone for ambient aerosol monitoring applications[J].Aerosol Science and Technology,2000,32:338-358.
[7]陈仲辉,张文阁,黄星亮,等.PM2.5切割器切割特性研究[J].中国计量,2014(8):82-85.
[8]LE T C,TSAI C J.Inertial impaction technique for the classification of particulate matters and nanoparticles:a review[J].KONA Powder and Particle Journal,2021,38:42-63.
[9]DIETZ P W.Collection efficiency of cyclone separators[J].AIChE Journal,1981,27(6):888-892.
[10]HELMUT B.Size separation of particles from aerosol samples using impactors and cyclones[J].Particle and Particle Systems Characterization,1988,5(2):87-93.
[11]CHEN C C,HUANG S H.Shift of aerosol penetration in respirable cyclone samplers[J].American Industrial Hygiene Association Journal,1999,60:720-729.
[12]GUSSMAN L A.A direct approach to the design of cyclones for aerosol-monitoring applications[J].Journal of Aerosol Science,2000,31(12):1407-1420.
[13]VANDERPOOL R W,PETERS T M,NATARAJAN S,et al.Evaluation of the loading characteristics of the EPA WINS PM2.5 separator[J].Aerosol Science and Technology,2001,34:444-456.
[14]RONGBIAO X,PARK S H,LEE K W.Effects of cone dimension on cyclone performance[J].Journal of Aerosol Science,2001,32(4):549-561.
[15]狄文静,张增福,马艺闻,等.PM2.5细颗粒物分离技术的数值模拟和性能改进[J].纳米技术与精密工程,2014,12(4):263-268.
[16]HSU C W,HUANG S H,LIN C W,et al.An experimental study on performance improvement of the stairmand cyclone design[J].Aerosol and Air Quality Research,2014,14(3):1003-1016.
[17]李征真.便携式PM2.5检测仪切割器的设计与验证[J].矿业安全与环保,2015,42(2):32-34,38.
[18]LIN C W,CHEN T J,HUANG S H,et al.Effect of aerosol loading on separation performance of PM2.5 cyclones separators[J].Aerosol and Air Quality Research,2018,18:1366-1374.
[19]邹亚雄,任晓庆,刘伟光,等.柱锥段结构对旋风切割器性能的影响研究[J].仪器仪表学报,2022,43(1):73-82.
[20]KENNY L C,THORPE A,STACEY P.A collection of experimental data for aerosol monitoring cyclones[J].Aerosol Science Technology,2017,51(10):1190-1200.
[21]SMITH W B,WILSON R R,HARRIS D B.A five-stage cyclone system for in situ sampling[J].Environmental Science and Technology,1979,13(11):1387-1392.
[22]中国环境监测总局.环境空气颗粒物(PM10和PM2.5)采样器技术要求及检测方法：HJ 93—2013[S].北京：中国环境科学出版社,2013.
[23]PETERS T M,GUSSMAN R A,KENNY L C,et al.Evaluation of PM2.5 size selectors used in speciation samplers[J].Aerosol Science and Technology,2001,34(5):422-429.
[24]PHILIP D,SEUNG J L,PETROS K.Development and evaluation of a high loading PM2.5 speciation sampler[J].Aerosol Science and Technology,2004,38(2):111-119.
[25]阮兵,李兴华,谢岩,等.PM2.5旋风切割器的性能测试与模拟[J].环境科学学报,2018,38(7):2811-2817.
[26]刘佳琪,张国城,赵晓宁,等.针对工作流量为2 L/min的切割器的捕集效率评价研究[J].环境科学学报,2021,41(7):2640-2646.
[27]朱正元,陈伟侯,陈丰.Logistic曲线与Gompertz曲线的比较研究[J].数学的实践与认识,2003,33(10):66-71.
[28]PINEIRO G,PERELMAN S,GUERSCHMAN J P,et al.How to evaluate models:observed vs.predicted or predicted vs.observed[J].Ecological Modelling,2008,216:316-322.
[29]KENNY L C,GUSSMAN R A.A direct approach to the design of cyclones for aerosol-monitoring applications[J].Journal of Aerosol Science,2000,31(12):1407-1420.
[30]KENNY L C,GUSSMAN R A.Characterization and modeling of a family of cyclone aerosol preseparators[J].Journal of Aerosol Science,1995,26(1):777-778.
[31]MARPLE V A.Fundamental study of inertial impactors[D].Minneapolis:University of Minnesota,1970.
[32]MARPLE V A,WILLEKE K.Impactor design[J].Atmospheric Environment,1976,10(10)：891-896.
[33]RADER D J,MARPLE V A.Effect of ultra-stokesian drag and particle interception characteristics[J].Aerosol Science and Technology,1985,4:141-156.
[34]MOORE M E,MCFARLAND A R.Performance modeling of single-inlet aerosol sampling cyclones[J].Environmental Science and Technology,1993,27(9):1842-1848.
