中国电力 ›› 2021, Vol. 54 ›› Issue (2): 190-196.doi: 10.11930/j.issn.1004-9649.202006319

• 节能与环保 • 上一篇    

燃煤电厂超低排放PM10/PM2.5实验室采样对比分析

惠立锋   

  1. 中煤科工集团重庆研究院有限公司,重庆 400037
  • 收稿日期:2020-07-08 修回日期:2020-11-30 发布日期:2021-02-06
  • 作者简介:惠立锋(1986-),男,硕士,助理研究员,从事大气颗粒物、煤矿呼吸性粉尘监测技术研究,E-mail:huilif0530@163.com
  • 基金资助:
    国家重点研发计划资助项目(燃煤电厂超低排放监测仪器,2016YFF0102800)

Comparative Analysis of PM10/PM2.5 Laboratory Sampling for Ultra-low Emission of Coal-Fired Power Plants

HUI Lifeng   

  1. Chongqing Research Institute of China Coal Technology Engineering Group, Chongqing 400037, China
  • Received:2020-07-08 Revised:2020-11-30 Published:2021-02-06
  • Supported by:
    This work is supported by National Key Research and Development Program of China (Ultra-low Emission Monitoring Instrument for Coal-Fired Power Plant, No.2016YFF0102800)

摘要: 为探究采用不同原理的颗粒物采样器在燃煤电厂超低排放设施PM10及PM2.5检测中的结果差异,基于颗粒物采样实验验证模拟系统及全自动滤膜批量称重系统,在0~6 mg/m3质量浓度环境下,对旋风分离器和虚拟冲击器的采样结果的相关性、稳定性进行测试比对,并验证分析了湿度对两种采样方式的影响。结果表明,旋风分离器和虚拟冲击器两种采样方式测试结果呈高度相关,干燥环境下旋风分离器稳定性和重复性优于虚拟冲击器,但湿度对旋风分离器的影响作用强于虚拟冲击器,在燃煤电厂超低排放PM10及PM2.5采样时,应根据环境差异合理选择采样方式。

关键词: 超低排放, PM10/PM2.5, 采样, 旋风分离器, 虚拟冲击器

Abstract: In the ultra-low emission facilities of coal-fired power plants, in order to explore the cause of different PM10/PM2.5 measurement results from the particle samplers adopted with different principles, the correlation and stability of the sampling results of the cyclone separator and virtual impactor were tested and compared. In addition, the influence of humidity on the two sampling methods was verified and analyzed, which were all based on particle sampling experiment verification simulation system and automatic filter membrane batch weighing system in the mass concentration environment of 0~6 mg/m3. The results show that the test results of the two sampling methods of cyclone separator and virtual impactor are highly correlated. The stability and reproducibility of the cyclone separator in dry environment is better than that of the virtual impactor. However, the humidity shows stronger effect on the cyclone separator than the virtual impactor. Particularly in the case of PM10/PM2.5 detection in ultra-low emission power plants, appropriate sampling methods should be selected in consideration of environmental differences.

Key words: ultra-low emission, PM10 and PM2.5, sampling, cyclone separator, virtual impactor