光散射原理在粉尘测量系统的应用研究

doi:10.16265/j.cnki.issn1003-3033.2020.06.006

中国安全科学学报 ›› 2020, Vol. 30 ›› Issue (6): 37-42.doi: 10.16265/j.cnki.issn1003-3033.2020.06.006

光散射原理在粉尘测量系统的应用研究

付士根^1,2 教授级高工, 李全明^**1,2 教授级高工, 胡家国^1,2 教授级高工, 董贺伟³

1.中国安全生产科学研究院,北京 100012;
2.矿山采空区灾害防治应急管理部重点实验室,北京 100012;
3.首钢集团有限公司矿业公司,河北迁安 064404

收稿日期:2020-03-17 修回日期:2020-05-28 出版日期:2020-06-28 发布日期:2021-01-28
通讯作者: **李全明(1979—),男,河北沧州人,博士,教授级高工,主要从事矿山安全技术等方面的研究。E-mail:360532202@qq.com。
作者简介:付士根(1974—),男,山东菏泽人,博士,教授级高工,主要从事矿山粉尘防治技术等方面的研究。E-mail:fu0201100@163.com。
基金资助:
“十三五”国家重点研发计划(2017YFC0805205);中国安全生产科学研究院基础科研项目(2019JBKY10,2016JBKY16)。

Application research of light scattering principle in dust measurement system

FU Shigen^1,2, LI Quanming^1,2, HU Jiaguo^1,2, DONG Hewei³

1. China Academy of Safety Science and Technology, Beijing 100012, China;
2. Key Laboratory of Mining Goaf Disaster Prevention and Control of Ministry of Emergency Management, Beijing 100012, China;
3. Mining Company of Shougang Group Co., Ltd., Qian'an Hebei 064404,China

Received:2020-03-17 Revised:2020-05-28 Online:2020-06-28 Published:2021-01-28

摘要/Abstract

摘要： 为预防呼吸性粉尘的危害,连续有效监测个体呼尘的质量浓度,根据光散射原理,研制以红外光发射光二极管作为光源的便携式个体呼吸性粉尘质量浓度监测试验样机,开发样机的气路控制电路和光路控制检测电路;将试验样机和对比仪器放于自制粉尘试验装置,并向试验装置通入流量为2 L/min、颗粒粒径5 μm左右的粉尘气体。试验结果表明:粉尘质量浓度在0～150 mg/m³范围内,试验样机电压测量值随粉尘质量浓度的增大而增加,二者具有较好的线性关系;利用回归方程计算的试验样机质量浓度测量值与对比仪器的粉尘质量浓度测量值之间的相对误差在±4%范围内,该装置满足相关粉尘检定规程要求。

关键词: 光散射, 呼吸性粉尘, 粉尘质量浓度, 个体监测仪, 线性关系

Abstract: In order to prevent harm caused by respiratory dust and to monitor mass concentration of individual exhalation dust, a portable personal concentration monitoring test prototype was developed by using infrared light emitting photodiode as a light source according to principle of light scattering, and its pneumatic control circuit and optical control and detection circuit were designed.Then, prototype and comparison instrument were put in a self-made dust test device together with dust gas which featured a flow rate of 2 L/min and a particle size of 5 μm. The results show that when mass concentration of dust is between 0-150 mg/m³, measured voltage of prototype increases along with increase of dust concentration, and they maintain a good linear relationship. The relative error between measured concentration value of prototype by using regression equation and that of comparison instrument is within ±4%, indicating that the device meets requirements of relevant dust verification regulations.

Key words: light scattering, respiratory dust, dust mass concentration, individual monitor, linear relationship

中图分类号:

X964

付士根, 李全明, 胡家国, 董贺伟. 光散射原理在粉尘测量系统的应用研究[J]. 中国安全科学学报, 2020, 30(6): 37-42.

FU Shigen, LI Quanming, HU Jiaguo, DONG Hewei. Application research of light scattering principle in dust measurement system[J]. China Safety Science Journal, 2020, 30(6): 37-42.

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光散射原理在粉尘测量系统的应用研究

Application research of light scattering principle in dust measurement system

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