作者：崔廷¹, 苗芊², 苏东赢¹, 张勍², 曾波², 杨荣超², 张鹏飞², 史占东²

作者单位：1. 河南中烟工业有限责任公司技术中心, 河南 郑州 450000;
2. 中国烟草总公司郑州烟草研究院, 河南 郑州 450001

关键词：烟用层流流量传感器;数值仿真;误差分析;环境因素

摘要：

为探究烟用层流流量传感器测量准确性的影响因素，介绍烟用层流流量传感器的基本结构，分析烟用层流流量传感器的入口效应，采用Fluent软件进行数值仿真。结果表明：烟用层流流量传感器仿真曲线与实验曲线基本吻合；小流量时仿真值与理论值较为接近，大流量时仿真值与理论值相对误差超过1%；环境因素对烟用层流流量传感器测量准确性的影响，温度最为显著，大气压仅在大流量时有一定影响，湿度基本无影响。通过研究环境因素对烟用层流流量传感器测量准确性的影响，对提高实验室与车间卷烟通风率测量一致性具有指导意义。

Research on measuring accuracy of tobacco laminar flow transducer
CUI Ting¹, MIAO Qian², SU Dongying¹, ZHANG Qing², ZENG Bo², YANG Rongchao², ZHANG Pengfei², SHI Zhandong²
1. Technology Center of China Tobacco Henan Industrial Co., Ltd., Zhengzhou 450000, China;
2. Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
Abstract: In order to explore the factors affecting the measurement accuracy of tobacco laminar flow transducer, the basic structure of tobacco laminar flow transducer was introduced. The entrance effect of tobacco laminar flow transducer was analyzed, and numerical simulation was carried out with the Fluent software. The results indicated that the simulation curves of tobacco laminar flow transducer agreed well with the experimental curves. The simulation value was close to the theoretical value under low flow rate. While, the relative error between the simulation value and theoretical value exceeded 1% under high flow rate. The influence of environmental factors on its measurement accuracy, remarkable level with temperature, slight level with atmospheric pressure, irrelevant with humidity. The influence factors on the measurement accuracy of tobacco laminar flow transducer are studied, which has guiding significance on improving its measuring consistency of laboratory and workshop.
Keywords: tobacco laminar flow transducer;numerical simulation;error analysis;environmental factor
2019, 45(11):90-94  收稿日期: 2019-06-18;收到修改稿日期: 2019-08-19
基金项目: 河南中烟工业有限责任公司发展研究项目（ZW201708）
作者简介: 崔廷(1987-),男,河南周口市人,工程师,硕士,主要从事烟草计量测试研究
参考文献
[1] 魏少群, 刘慧平, 黄志凡, 等. 基于层流流量计的多组分气体流量测量与补偿算法研究[J]. 计量与测试技术, 2017, 44(5):114-116
[2] 王伯年. 史绍熙院士对层流流量计和内燃机空气流量测量的贡献[J]. 内燃机学报, 2001, 19(6):531-533
[3] 蔡武昌. 从FLOMEKO2010看流量测量技术和仪表的发展[J]. 石油化工自动化, 2011, 47(5):1-4
[4] THOMAS D, CULMER J. Laminar flow elements[J]. Flow control, 2001(3):34-36
[5] WRIGHT J D, COBU T, BERG R F, et al. Calibration of laminar flow meters for process gases[J]. Flow measurement and instrumentation, 2012(25):8-13
[6] 卷烟和滤棒物理性能的测定第15部分:卷烟通风的测定定义和测量原理:GB/T 22838.15-2009[S]. 北京:中国标准出版社, 2009.
[7] Cigarettes-determination of ventilation-definitions and measurement principles:ISO 9512:2002[S]. Switzerland:IHS, 2002.
[8] 张嘉祥. 层流流量计计算数学模型和标定方法的研究[J]. 中国测试, 2009, 35(5):14-17
[9] 王伯年, 王荣杰, 王利民, 等. 层流流量计设计参数的选择与确定[J]. 仪器仪表学报, 2000, 21(5):474-476
[10] 郭辉, 张振东, 赵礼辉, 等. 基于LabVIEW的数字式层流流量计开发研究[J]. 机械设计与制造, 2012(2):93-94
[11] PENA F L, DIAZ A D, LEMA M R, et al. A new approach to laminar flowmeters[J]. Sensors, 2010(10):10560-10566
[12] 气体层流流量传感器:JJG 736-2012[S]. 北京:中国质检出版社, 2012.
[13] COLARD S, TRINKIES W, GHOLET G, et al. Compensation for the effects of ambient conditions on the calibration of multi-capillary pressure drop standards[J]. Contributions to Tobacco Research, 2004, 21(3):167-173