CAJ | 학술논문

通过对SO_2气体在紫外光区间吸收光谱的分析,以差分吸收光谱技术原理为基础,通过改进数据处理方法,得到了气体浓度与光谱参量间的函数关系,建立了自动监测系统模型,实现了烟道气体SO_2浓度的在线实时监测.实验结果表明,监测系统的探测限为3×10~(-6),最大测量误差为7.4%,基本满足烟道气体的监测要求,且不易受外界环境的干扰,易操作维护,成本低,在环境保护方面具有广阔的市场前景.
통과대SO_2기체재자외광구간흡수광보적분석,이차분흡수광보기술원리위기출,통과개진수거처리방법,득도료기체농도여광보삼량간적함수관계,건립료자동감측계통모형,실현료연도기체SO_2농도적재선실시감측.실험결과표명,감측계통적탐측한위3×10~(-6),최대측량오차위7.4%,기본만족연도기체적감측요구,차불역수외계배경적간우,역조작유호,성본저,재배경보호방면구유엄활적시장전경.
In order to measure sulfur dioxide concentration in the flue gas , the establishment of a monitoring system. Through the analysis about the spectroscopy of sulphur dioxide in the UV absorption spectra based on differential optical absorption spectroscopy technolgy. By improved data-processing methods, the establishment relationship between the gas concentration and spectral parameters of sulphur dioxide gas concentrations to achieve real-time online monitoring. Experimental results show that the measurement system detection limit of 3×10~(-6), the largest measuring error of 7.4%. The system of detecting flue gas to meet monitoring requirements, vulnerable to the external interference, easy operation and maintenance, have great market prospects.