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Portable infrared gas analyzer

A gas analyzer and portable technology, applied in the field of gas analyzers, can solve problems such as bulky volume, and achieve the effects of small size, easy portability and simple structure

Inactive Publication Date: 2012-04-11
CHONGQING CHUANYI ANALYZER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such an external calibration device is generally composed of standard gas and preprocessing unit, which is bulky and portable.

Method used

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  • Portable infrared gas analyzer
  • Portable infrared gas analyzer

Examples

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Embodiment Construction

[0017] Such as figure 1 As shown, the portable infrared gas analyzer in this embodiment includes a preprocessing unit, a calibration unit, an analysis unit and a control system, and the control system controls the operation of the portable infrared gas analyzer.

[0018] see figure 2 , the analysis unit is composed of an infrared light source 1 , an analysis gas chamber 2 and a receiver 3 , the infrared light source 1 is arranged opposite to the receiver 3 , and the analysis gas chamber 2 is arranged between the infrared light source 1 and the receiver 3 . The analysis gas chamber 2 includes a parallel gas chamber I 21 and a gas chamber II 22, the gas chamber II 22 is filled with nitrogen, and the two ends of the gas chamber I 21 are respectively provided with a sample gas outlet 24 and a sample gas inlet 23. The gas chamber I 21 and the gas chamber II 22 are arranged along a direction perpendicular to the emission direction of the infrared light source. The calibration uni...

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Abstract

The invention relates to an infrared gas analyzer, and particularly discloses a portable infrared gas analyzer which comprises a pretreatment unit, a calibration unit, an analysis unit, and a control system; the analysis unit comprises an infrared light source, an analytic gas chamber, and a receiver; the infrared light source is disposed facing the receiver; the analytic gas chamber is disposed between the infrared light source and the receiver; the control system controls the running of the portable infrared gas analyzer, and calculates the concentration of the gas based on the attenuation degree of infrared signals received by the receiver. The invention integrates the pretreatment unit and the calibration unit, has a small volume, is portable, and can perform high-precision measurement and analysis of sample gas based on its infrared absorption characteristics; the calibration unit can realize the zero correction of the gas to be measured and the automatic calibration of the measurement range; the pretreatment unit can remove liquid components and particles in the gas to be measured, and can adjust the flow rate of the gas to be measured to a flow rate suitable for analysis.

Description

technical field [0001] The invention relates to a gas analyzer, in particular to a portable gas analyzer. Background technique [0002] Most of the portable analyzers currently on the market use electrochemical principles, which have low measurement accuracy and poor anti-interference ability, especially the high concentration of carbon monoxide has a great influence on the measurement of sulfur dioxide, and the high concentration of sulfur dioxide has a great influence on the measurement of nitric oxide. Big. Some analytical instruments using the infrared absorption method are only analytical equipment, and industrial flue gas (sample gas) cannot directly enter the analytical instrument, and external pretreatment devices and instrument calibration devices are required. Such an external calibration device is generally composed of a standard gas and a pretreatment unit, which is bulky and portable. Contents of the invention [0003] The object of the present invention is ...

Claims

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Application Information

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IPC IPC(8): G01N21/35G01N1/28G01N21/3504
Inventor 严实周磊
Owner CHONGQING CHUANYI ANALYZER CO LTD
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