Improved Orsat gas analyzer and analysis method thereof

Abstract

The invention relates to an improved Orsat gas analyzer and an analysis method thereof. A 1901 type Orsat gas analyzer is used as the basis, a set of gas absorption tubes are disassembled, a burner replaces the gas absorption tubes, and a lighting lamp is added. In accordance with some theoretic and the practical situations such as explosion limit of hydrogen in air, combustible gas residual safe concentration, analysis sampling requirement, dynamical changed hydrogen content and practical analysis experience, a hydrogen content and practical sample amount experience comparison table and a corresponding operating method are independently compiled, so as to keep the advantages of the 1901 type Orsat gas analyzer that: the size is small, the analyzer is conveniently carried over and satisfies the analysis requirement for oxygen and carbon dioxide content, and the analyzer movably analyses on multi points in the light-insufficient outer production environment such as at night, and realizes the advantages of convenience in operation of the content value of the dynamically changed hydrogen in the hydrogen system replacement, continuous analysis during the whole process, short replacement qualified time, reduced use cost of the pure nitrogen gas and low working strength of the analyzer.

Description

technical field [0001] The invention belongs to the technical field of gas analysis, and relates to a device and method suitable for analyzing gas in a hydrogen system when a chlor-alkali enterprise shuts down for maintenance, in particular to an improved Austenitic gas analyzer and an analysis method thereof. Background technique [0002] Chlor-alkali enterprises produce caustic soda, hydrogen, chlorine and other compounds and elemental gases through electrolysis of brine. Due to the corrosiveness, pressure and danger of the above-mentioned substances, chlor-alkali enterprises generally shut down for maintenance of equipment and pipelines every three months. In particular, the hydrogen system must be replaced with an inert gas before it can be overhauled. Most chlor-alkali enterprises generally use Austenitic gas analyzers to continuously analyze the analysis and replacement effects of electrolyzer branch hydrogen outlet pipes, hydrogen cooling towers, hydrogen pump inlet a...

AI Technical Summary

Problems solved by technology

This kind of detection requires the use of 1903-1904 Austenitic gas analyzer. Due to its large size and the need for auxiliary facilities, it is only suitable for placing analysis in the laboratory, not suitable for mobile analysis, and requires more manpower for continuous sampling and round-trip experiments. Data analysis in the laboratory increases the work intensity of analysts and prolongs the overall analysis time, which is not conducive to the timeliness of process control

Although the 1901-1902 Austenitic gas analyzer is small in size and suitable for mobility analysis, it does not meet the requirements for hydrogen content analysis and cannot be used in this occasion.

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