主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2020, Vol. 39 ›› Issue (2): 243-247.

• • 上一篇    下一篇

基于黏度特征气体探测识别方法实验研究

杨淞成1，鲍玉朋2，赵兰明1,2   

  1. （1.江苏海洋大学 化学工程学院，江苏 连云港 222000；2.中国科学技术大学 火灾科学国家重点实验室，安徽 合肥 230026）
  • 收稿日期:2019-09-23 出版日期:2020-02-15 发布日期:2020-02-15
  • 作者简介:杨淞成（1995-），男，浙江台州人，江苏海洋大学化学工程学院硕士研究生，主要从事非选择性火灾气体探测技术研究，江苏省连云港市海州区苍梧路59号，222000。
  • 基金资助:
    江苏省高校自然科学研究面上项目（17KJB620001）；中国科学技术大学火灾科学国家实验室开放课题（HZ2017-KF10）

Gas detection and identification method based on viscosity characteristic

YANG Song-cheng1, BAO Yu-peng2,ZHAO Lan-ming1,2   

  1. (1. School of Chemical Engineering, Jiangsu Ocean University, Jiangsu Lianyungang 222000, China; 2. State Key Laboratory of Fire Science, University of Science and Technology of China, Anhui Hefei 230026, China)
  • Received:2019-09-23 Online:2020-02-15 Published:2020-02-15

摘要： 提出一种基于差压原理的气体组分检测方法，通过测量待测气体流经特制黏度传感部件后产生的差压信号响应，换算获得气体黏度数据，根据泊肃叶定律及混合气体黏度理论定量关系反演获取待测气体组成。通过实验验证了利用黏度差异进行气体识别的理论和应用可行性。通过开展基于流量基准值和测量斜率的未知气体识别实验，证明两种方法均能够对4种未知气体进行精准识别。

关键词: 气体黏度, 气体识别, 火灾探测, 泊肃叶定律

Abstract: A gas component detection method based on differential pressure principle was proposed. By measuring the differential pressure signal response of the gas to be measured after passing through the special viscosity sensor, the gas viscosity data can be obtained through conversion. The gas composition can be obtained by inversion according to the quantitative relationship based on Poiseuille's law and the viscosity theory of mixed gas. The experimental results proved the feasibility of gas recognition using viscosity in theory and practice. Verification tests based on flowrate reference value and linear equation slope were carried out. Results showed that both two methods are effective ways to accurately identify the 4 unknown gas samples.

Key words: gas viscosity, gas identification, fire detection, Poiseuille's law