中国烟草学报2025，Vol.31Issue(5)：41-47,7.DOI:10.16472/j.chinatobacco.2025.T0006
烟草专用标准恒流孔期间核查装置的开发与应用
Development and application of intermediate check device for cigarette critical flow orifice
摘要
Abstract
[Objective]This study aims to achieve the daily intermediate check of the critical flow orifice(CFO)for cigarette draw resistance,ventilation rate and filter rod pressure drop detection equipment in laboratories and production workshops of cigarette industrial enterprises.[Methods]An intermediate check device based on a mass flowmeter was developed.Three cigarette critical flow orifices were selected to conduct repeatability and stability tests of the intermediate check device,as well as a comparison experiment with the tobacco-specific standard gas flow device.Additionally,the intermediate check was performed on critical flow orifices currently in use in the laboratory.[Results](1)The maximum standard deviation of the repeatability measurement results of the intermediate check device was 0.016 mL/s,and the maximum range of stability measurements was 0.05 mL/s.(2)For the same critical flow orifice,the maximum relative error between the measurements obtained by the developed intermediate check device and the tobacco-specific gas flow standard device was less than 0.2%.(3)Using this device to conduct 10 intermediate checks on 10 different critical flow orifices yielded a coefficient of variation ranging from 0.07%to 0.42%.(4)The volume of the developed intermediate check device was approximately one quarter of the tobacco-specific gas flow standard device,and the single measurement time was shortened from about 4 min to 2 s.[Conclusion]The developed intermediate check device can meet the requirements for daily intermediate check of cigarette draw resistance,ventilation rate and filter rod pressure drop detection equipment,ensure the validity of the test results,and is convenient to carry and promote.关键词
标准恒流孔/期间核查/吸阻和通风率/滤棒压降/检测设备Key words
critical flow orifice/intermediate check/draw resistance and ventilation rate/filter rod pressure drop/measuring instrument引用本文复制引用
高凤,江凤玲,张晰祥,余啸辉,邱雨,史占东,王晶,杨荣超,闻静,倪嘉曦,彭艺茹,潘辰,刘洋,杨涓..烟草专用标准恒流孔期间核查装置的开发与应用[J].中国烟草学报,2025,31(5):41-47,7.基金项目
中国烟草总公司重点研发项目"卷烟关键物理性能检测设备远程计量技术研究与应用"(No.110202202039) （No.110202202039）
四川中烟工业有限责任公司科技项目"烟草专用标准恒流孔期间核查装置的开发与应用"(No.2022510000340248) （No.2022510000340248）
