Standard sample dilution deviation tracking and correcting system calibrated by gas analyzer on line and method thereof

Abstract

The invention discloses a specimen dilution deviation tracking and correcting system calibrated by a gas analyzer on line and a method thereof. The specimen dilution tracking deviation correcting system comprises a master control computer, a calibrated gas analyzer and a calibration instrument, wherein the calibrated gas analyzer is communicated with a gas circuit of the calibration instrument via a diluted specimen delivery valve; the calibration instrument is communicated with gas circuits of a zero gas generator and a standard air storage vessel for dilution; the master control computer is respectively connected with the calibrated gas analyzer, the diluted specimen delivery valve, the calibration instrument and the zero air generator electrically; the calibrated gas analyzer is communicated with a gas circuit of a dilution-free standard air storage vessel via a dilution-free specimen delivery valve; and the dilution-free specimen delivery valve is electrically connected with the master control computer. The invention overcomes the deficiency of the traditional gas analyzer in on-line calibration technology, can find out the defective condition of the calibration instruction performance, and obtains the best effect of reducing the standard sample concentration error by a simple and practical technological method; and the working procedure is simple and facilitates the control of the master control computer.

Description

technical field [0001] The invention relates to test analysis technology and analysis instrument process integration technology, and in particular provides a standard sample dilution deviation trace correction system and method for online calibration of gas analysis instruments. Background technique [0002] In order to cope with and solve the environmental pollution problems caused by contemporary industrial production and human living life, people need continuous, accurate and extensive monitoring of the concentration of various harmful gas pollutants in the ambient air; There are a large number of automatic monitoring stations for ambient air with complex systems in various places. And relying on the development level of modern test and analysis technology, this kind of automatic monitoring station is built as a dedicated automatic test and analysis laboratory for specific gas pollutant projects, integrated in the unmanned room. The main body of its workflow is various g...

AI Technical Summary

Problems solved by technology

[0023] The defects of the above-mentioned standard sample distribution device in terms of flow measurement error limit the inability to obtain higher accuracy data in the online calibration of gas analysis instruments

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