本文研制了一种车用压缩煤层气高压采样和高压在线质量检测同时进行的分析仪器。介绍了该仪器的组成和设计特点,给出了其性能指标和测量精度。标准气体测定、方法比对实验以及设备校准证书证实了其测量准确性和实用性。该仪器可应用于车用压缩煤层气的高压采样,现场甲烷含量分析、进气口温度和压力测量以及水露点测定。 This paper developed a vehicle compression coalbed methane high-pressure sampling and high-pressure on-line quality testing simultaneously analytical instruments. The composition and design features of the instrument are introduced, and its performance index and measurement accuracy are given. Standard gas determination, method comparison experiments and equipment calibration certificates confirm its measurement accuracy and practicality. The instrument can be applied to automotive compressed CBM high pressure sampling, on-site methane content analysis, inlet temperature and pressure measurement and water dew point determination.