Detection system device for escaping methane and use method thereof

The invention provides an escape methane detection system device and a use method thereof. The detection system device comprises an alkali liquor washing device, a water removal device and an infrared spectrometer which are sequentially connected along the flow direction of gas to be detected, the alkali liquor washing device is connected with an air inlet pipeline, and the output end of the air inlet pipeline is located below the liquid level of alkali liquor in the alkali liquor washing device. An air outlet is formed in the top of the alkali liquor washing device, and the air outlet of the alkali liquor washing device is connected with the water removal device. The alkali liquor washing device can effectively remove carbon dioxide in the to-be-detected gas, and the water removal device can effectively remove water in the to-be-detected gas, so that the methane detection precision of the infrared spectrometer can be improved. 本发明提供了一种逃逸甲烷的检测系统装置及其使用方法，所述检测系统装置包括沿待测气体流向依次连接的碱液洗涤装置、除水装置和红外光谱仪；所述碱液洗涤装置连接有进气管路，