Hubei Cubic-Ruiyi Instrument Co., Ltd

Wuhan Cubic Optoelectronics Co., Ltd.

Pingjing Shi

Youhui Xiong

Zhiqiang Liu

Tao He

Jingwei Cheng

Mingliang He

Liangshun Yi

A gas analyzer includes a reference gas chamber and a measurement gas chamber in a single cavity, and a micro-flow infrared gas detection device. A water adjustment device is disposed in the micro-flow infrared gas detection device. By identifying the overlapping phenomenon of the absorption spectrums of the gaseous water and the gas to be measured and by taking advantage of the difference between the infrared absorption spectrums of the gaseous water and the gas to be measured, the water adjustment valve is adjusted to change the velocity variation due to the expansion of the gas in front and rear gas chambers and the water adjustment buffer gas chamber of the micro-flow infrared gas detection device, such that the detected infrared spectrum is located within the absorption spectrum of the gas to be measured while away from the absorption spectrum of the gaseous water, thus addressing the water interference issue.

Gas analyzer and gas analyzing method

A method for measuring the component and calorific value of goal gas. The method includes measuring a volume concentration of H(T) using a thermal conductivity detector (TCD), measuring a volume concentration of Ousing an electrochemical detector (ECD), measuring volume concentrations of CO, CO, CH, and CHin the coal gas, revising an interference of CHin CH, revising a measured volume concentration of H, and calculating the calorific value of the coal gas.

Method for measuring amounts of components and calorific value of coal gas

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Wuhan, China

Pingjing Shi