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烟用层流流量传感器测量准确性研究

74    2019-11-28

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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
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