垃圾焚烧傅里叶红外气体分析仪的研制及应用

Development and Application of Fourier Transform Infrared Gas Analyzer for Garbage Incineration

摘要: 为了满足垃圾焚烧污染源多组分气体在线监测的需要，研制了一款基于傅里叶红外光谱分析技术的气体分析仪，本文对分析仪的硬件、软件进行了描述。在实验室测量了该仪器对SO₂和NO的重复性和示值误差，结果表明分析仪的重复性优于1%，示值相对误差小于2%，具备良好的准确性；同时，模拟测量了排放现场不同浓度水气干扰下的结果，结果表明SO₂和NO的示值绝对偏差低于1 ppm，相对偏差小于2%，具备一定的现场应用能力。

Abstract: In order to meet the need for online monitoring of multi-component gases from waste incinera-tion pollution sources, a gas analyzer based on Fourier transform infrared spectroscopy analysis technology has been developed. This article describes the hardware and software of the analyzer. The repeatability and indication error of the instrument for SO₂ and NO were measured in the laboratory, and the results showed that the repeatability of the analyzer was better than 1%, and the relative error of indication was less than 2%, indicating good accuracy; At the same time, simulation measurements were conducted on the results of different concentrations of water vapor interference at the emission site. The results showed that the absolute deviation of SO₂ and NO readings was less than 1 ppm, and the relative deviation was less than 2%, indicating certain on-site application capabilities.