Natural gas online calorific value analyzer explosion-proof type

Natural gas online calorific value analyzer explosion-proof type

The analysis of natural gas components and calculation of calorific value are carried out using gas chromatography method and gas chromatography analyzer. It is designed for rapid and accurate analysis of natural gas components such as oxygen, nitrogen, C1, C6+, CO2, N2, etc. for natural gas transportation pipelines, urban gas gate stations, and natural gas commercial users, and calculates relevant parameters such as output calorific value, relative density, compression factor, and Wopo index.

Natural gas calorific value testerThe principle of analysis:

Online gas chromatograph is a gas chromatography analyzer specifically designed for natural gas component analysis and calorific value calculation. It enables rapid and accurate analysis of natural gas components such as 1216+, CO2, N2, etc. in long-distance natural gas pipelines, urban gas stations, and natural gas commercial users, and calculates relevant parameters such as output heat value, relative density, compression factor, and Wopo index.

Natural gas online calorific value analyzer explosion-proof typeSystem advantages:

Adopting * (MEMS) microelectromechanical system technology

Advantages: Short analysis cycle, fast response time, high measurement accuracy, and low consumption of carrier and standard gases,

Adopting integrated flow path design

Modular design, explosion-proof design

Simple and reliable installation and maintenance

The whole machine has a small size and strong adaptability to complex and harsh application environments.

The number of analytical channels refers to the ability of a chromatograph to analyze samples from multiple sampling points (channels). At present, the maximum number of flow paths for chromatographic analysis is 31 (including calibration flow paths). In actual use, there are generally 1-3 flow paths, and in rare cases, there are 4 flow paths. But it should be noted that the following points:

① For the same chromatograph, the composition of each flow channel sample should be roughly the same, as they use the same set of chromatographic columns for separation;

② The interval time for analyzing a certain channel is the time it takes to analyze all channels once, so multi channel analysis comes at the cost of prolonging the analysis cycle. Of course, it is also possible to analyze a certain channel more frequently and other channels less frequently as needed. In short, multi channel analysis will reduce the analysis frequency, making it impossible to guarantee DCS's requirements for analysis time.

It is generally recommended to use one chromatograph for analysis. However, for a dual channel chromatograph (with two column systems and detectors), it has the functionality of two chromatographs and can be considered as having two chromatographs.

Gas flow process: