CAJ | 학술논문

HCl是非常重要的化工原料,而且具有很强的腐蚀性和毒性,对其实现在线临测不但对工业生产工艺的优化会起到重要作用,也能有效的为环境污染提供必要的参照和数据.可调谐半导体激光吸收光谱技术(tuilable diode laser absorption spectroscopy,TDLAS)具有高灵敏、高选择性、快速响应等特点,该技术利用了半导体激光器的可调谐和窄线宽特性,通过选择待测气体的某条吸收线可排除其他气体的干扰可实现待测气体浓度的快速在线检测.介绍基于TDLAS的HCl气体检测的系统及实验,重点研究了温度对HCl测量的影响及其温度补偿方法,得出了一个经验公式.最后的实验结果验证了经验公式的合理性,进一步提高了TDLAS传感器在上业高温环境下测量气体浓度的准确性和可行性.
HCl시비상중요적화공원료,이차구유흔강적부식성화독성,대기실현재선림측불단대공업생산공예적우화회기도중요작용,야능유효적위배경오염제공필요적삼조화수거.가조해반도체격광흡수광보기술(tuilable diode laser absorption spectroscopy,TDLAS)구유고령민、고선택성、쾌속향응등특점,해기술이용료반도체격광기적가조해화착선관특성,통과선택대측기체적모조흡수선가배제기타기체적간우가실현대측기체농도적쾌속재선검측.개소기우TDLAS적HCl기체검측적계통급실험,중점연구료온도대HCl측량적영향급기온도보상방법,득출료일개경험공식.최후적실험결과험증료경험공식적합이성,진일보제고료TDLAS전감기재상업고온배경하측량기체농도적준학성화가행성.
HCL,with the character of strong erosion and toxicity,is a kind of chemical material of vital importance.So measuring the HCL irrsitu can not only optimize its production process,but also be necessary to reduce the environment pollution.TDLAS(tunable diode laser absorption spectroscopy) technology,and owning the advantage of the tunability and narrow line width of the diode laser,this method can relatively easily select the absorption line of the detected gas without the interference from other gas,thus making the rapid and accurate HCL measurement possible.In the present paper,the HCL measurement system and the implemented experiment are introduced.The impact of the temperature on the measurement as well as the temperature compensation method is emphasized.The final experimental results validated the rationality of the empirical equation and therefore the improvement of the accuracy and feasibility of the TDLAS technology.The system,whose detection limitation reaches 2 ppm,can satisfy the needs of industrial in-sit measurement.