| 紫外烟气连续监测系统在超低排放中的应用 |
| An Application of UV Gas Continuous Emission Monitoring System on Ultralow Emission Gaseous Pollutants |
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| 中文摘要: |
| 面对日益严峻的大气污染现状，环保部门提出了燃煤电厂的超低排放改造计划并制定了相应的烟气排放标准，对烟气排放监测技术提出了更高的要求。本文介绍一种基于紫外差分吸收光谱（DOAS）技术，高温全程伴热的超低量程烟气连续监测系统（CEMS-2000L）。其技术指标达到：量程100mg/m3，线性误差≤±1%F.S.，24h零点漂移、量程漂移≤±2%F.S.，响应时间＜110s。将系统应用于超低排放污染源现场，并且与非分散红外仪表进行比对测试。比对结果显示，测量值与参比方法的绝对误差小于3mg/m3，表明高温抽取式紫外DOAS技术适用于固定污染源超低排放的检测需求。 |
| 英文摘要: |
| In the face of the increasingly serious air pollution, the environmental protection department proposed an ultralow emission plan of coal-fired power plants and a series of corresponding standards. This paper presents an UV gas continuous emission monitoring system which was constructed based on differential optical absorption spectroscopy (DOAS) in high temperature with heat traced pipeline. Its technical indicators were as follows: measuring range was 100mg/m3, linear error ≤±1%F.S., deviation at zero point and span point in 24h was ≤±2%F.S., response time was ＜110s. The system was put into the application in ultralow emission plant and compared with the other gas analyzer on non-dispersive infrared method. The results showed that the absolute error was less than 3mg/m3. It indicated that this system was very suitable for ultralow emission of stationary pollution monitored. |
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| 中文关键词: 超低排放 高温抽取 紫外差分吸收光谱技术 |
| 英文关键词:ultralow emission heat traced pipeline DOAS |
| 基金项目: |
| DOI：10.11823/j.issn.1674-5795.2018.01.06 |
| 引用本文：李峰,张亮,李杰.紫外烟气连续监测系统在超低排放中的应用[J].计测技术,2018,38(1):. |
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