对非分散红外多组分气体检测技术及其在CEMS中的应用作了系统介绍。分析了非分散红外多组分气体检测的关键点、 技术难点及其解决方案。详细介绍了这种气体检测系统在CEMS应用中的组成、技术要求与支持, 得出其具有结构简单、成本低、测量精 度高和稳定性好等特点。该系统对我国气体检测技术的研究和气体检测仪器的研制具有重要的参考价值。

The non-dispersive infrared multi-component gas detection technology and its application in continuous emission monitoring systems (CEMS) are presented. The key factors and difficulties in multi-component gas detection are analyzed and the corresponding solutions are proposed. The composition, technical requirement and support for a non-dispersive infrared multi-component gas detection system used in CEMS are described in detail. It is concluded that it has the features of simple structure, low cost, high accuracy and good stability. The system is of some referential value to the development of multi-gas detection technology and instrument in our country.