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为准确分析卷烟主流烟气气相物中CO的逐口释放特征,改造了单孔道吸烟机,建立了一套基于可调谐二极管半导体激光吸收光谱(TDLAS)技术的卷烟主流烟气逐口在线分析系统。利用该系统,分析了管路和滤片夹持器残留对烟气逐口分析结果的影响,对4种不同类型卷烟中CO的逐口释放量进行了检测,探讨了其传递规律。结果表明:1清除残留前后CO的逐口传递规律明显不同;2在清除模式下,主流烟气中CO的释放量先降低后逐口增加,其中第2口的CO释放量最低。与传统检测方法相比,基于TDLAS技术的改造型单孔道吸烟机,能快速完成烟气中CO的检测,并有效避免烟气中其他成分的干扰。
In order to accurately analyze the phase-by-phase release characteristics of CO in the mainstream cigarette smoke gas phase, a single-hole smoking machine was modified and a mainstream on-line cigarette smoke-by-cigarette analysis system based on tunable diode semiconductor laser absorption spectroscopy (TDLAS) . The system was used to analyze the influence of pipeline and filter holder residues on the flue gas by-product analysis. The CO release from four different types of cigarettes was measured and the transfer rule was discussed. The results showed that: (1) There was a significant difference in the population-by-par delivery of CO before and after the removal of residuals; (2) In the removal mode, the release of CO from the mainstream flue gas first decreased and then increased from the first to the second. Compared with the traditional detection methods, the modified single-hole smoking machine based on TDLAS technology can quickly detect the CO in the flue gas and effectively avoid the interference of other components in the flue gas.