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Abstract

Ventilation rate is a physical index that is strictly controlled during cigarette manufacturing because an abnormal ventilation rate can affect the release of mainstream smoke, tar, and other components harmful to human health. Therefore, the standard rod is used for measuring the ventilation rate, which necessitates accurate and effective periodic inspections. In this study, we designed and built a set of special tobacco ventilation rate standard rods to assess the standard device during its verification period and used a digital thermal flowmeter as the flow standard.We determined the micro-pressure adjustment interval through fluid simulation, and conducted an experimental verification based on the simulation results. At the adjustment point where the differential pressure value was 0 Pa, the period verification device was tested under the standard values of 27.38%, 58.83%, and 71.95%. The results show that the measurement errors of the device are –0.42%, 0.55%, and –0.13% respectively, which all meet the verification regulation requirements and indicate that the device is applicable in practical situations.
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Authors and Affiliations

Jiacheng Hu
1
Ying Sha
1
Jinhui Cai
1
Ying Liu
2
Suijun Liu
2

  1. China Jiliang University, NO.258 XueYuan Street, Hangzhou, China
  2. Nanyang Cigarette Factory of Henan China Tobacco Industry, No. 6 Xinhua East Road, Nanyang, China

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