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Nondestructive testing device used for analyzing heat value of natural gas

A non-destructive testing and natural gas technology, which is applied in the field of fuel chemistry and spectroscopy, can solve the problems of high maintenance costs, frequent failures, and large systems, and achieve the effects of compact size, high safety, and high resolution

Inactive Publication Date: 2012-05-09
CHINA JILIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method requires extremely strict flow, air pressure and temperature control, the system is large and complex, the maintenance cost is high, and failures occur frequently

Method used

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  • Nondestructive testing device used for analyzing heat value of natural gas
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  • Nondestructive testing device used for analyzing heat value of natural gas

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Embodiment Construction

[0018] The following is attached figure 1 , 2 The present invention is further described.

[0019] Such as figure 1 As shown, a non-destructive testing device for analyzing the calorific value of natural gas includes a natural gas pipeline (1), a detection pipeline (3) is connected in parallel to the natural gas pipeline (1), and the left and right ends of the detection pipeline (3) are respectively set There are a left valve (21) and a right valve (22), the middle section is provided with a detection hole (7), the middle section is provided with a spectroscopic system, the upper part of the spectroscopic system is provided with an infrared light source, and the lower part of the spectroscopic system is provided with a Fourier transform The infrared spectrometer (8), and the Fourier transform infrared spectrometer (8) are connected with the computer (9).

[0020] The natural gas pipeline (1) is a high-pressure pipeline in the state of gas transmission, and the detection pip...

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Abstract

The invention discloses a nondestructive testing device used for analyzing heat value of natural gas. The natural gas is priced by volume in the prior art, and difference between the heat values of the natural gases of different air sources is big. In the nondestructive testing device disclosed by the invention, a testing pipeline is connected onto a natural gas pipeline to be detected in parallel, a beam-splitting system is arranged at the periphery of middle section of the testing pipeline, the testing pipeline corresponding to the beam-splitting system is provided with probe holes, an infrared light source is arranged above the beam-splitting system, a Fourier transformation infrared spectrometer is arranged below the beam-splitting system; the Fourier transformation infrared spectrometer is connected with a computer; the two ends of the testing pipeline are respectively provided with adjustable valves; the testing pipeline is provided with a vacuum pump provided with a valve; and the testing pipeline is provided with a thermometer and a negative pressure gauge. The nondestructive testing device disclosed by the invention applies spectrum analysis technology, has the characteristics of high resolution, high sensitivity, high signal to noise ratio and rapidness, system volume is compact, stability is high, a field testing mode is adopted, flexibility is strong, and testing efficiency is high.

Description

technical field [0001] The invention relates to the cross technical fields of spectroscopy and fuel chemistry, in particular to a nondestructive detection device for analyzing the calorific value of natural gas. Background technique [0002] At present, my country's commodity natural gas is priced by volume. Due to the large difference in the calorific value of natural gas from different gas sources, the difference in the use value of commodities under the same value is caused. Therefore, pricing based on the calorific value of natural gas reflects the principle of pricing based on quality, which is the need for the development of the commodity economy. The traditional natural gas calorific value detection device is mainly a calorific value meter, which applies the principle of heat balance. First, the sample gas is depressurized and the gas density is measured. After the second decompression, it is fully mixed with the combustion-supporting gas, enters the combustion chambe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/35G01N21/3504
Inventor 孔明崔颖陈淑星赵军郭天太刘维单良
Owner CHINA JILIANG UNIV
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