The principle and application of austenitic gas analyzer?
Working principle of austenite gas analyzerThe use of different solutions to different groups have been absorbed in the gas sample points in the sample of carbon dioxide with 40% sodium hydroxide absorption; in the sample of oxygen by pyrogallol solution of potassium absorption; using ammonia solution to absorb cuprous chloride in the sample of carbon monoxide. Then the content of each component is calculated according to the volume change of the sample before and after the absorption. CH4 and H2 were determined by explosive combustion, and the remaining gas was N2.The advantages of austenitic gas analyzer are simple structure, low cost and easy maintenance.
The main problems in the practical application of austenite gas analyzer are:1) this method is manual analyzer, the operation is more cumbersome, low precision, slow speed, can not achieve online analysis, can not adapt to the needs of production development;2) the volume of the comb tube has an influence on the analysis result, especially the impact on the explosion method;3) hot analysis determination time length Austria instrument, place has some limitations, but also must pay attention to the degree of chemical reaction, reading or not mislead the production;4) pyrobitumen food sub alkaline liquid acid at 15? 20 degrees of oxygen efficiency the best absorption effect decreased with the temperature decreased, 0 degrees almost completely loss absorption capacity, so that the absorption liquid temperature of not less than 15 DEG C.
Austenitic gas analyzerAlthough a low cost but high cost in the long run, remove the analysis of the cost, only every year to buy reagents and glassware should be at least 10 thousand yuan, and must carry on the manual sampling of gas in the laboratory analysis, the analysis accuracy of the skills of personnel and the "attitude" of the analysis has great influence. Austenite gas analyzer can only detect one single component analysis, with multiple inputs and signal processing functions, analysis of time-consuming, cumbersome, slow response speed, low efficiency, hard real-time analysis of production condition.Due to the above disadvantages of austenite gas analyzer, it is difficult to adapt to the needs of the development of production in the production process, such as chemical industry, petrochemical industry, in order to control the chemical reaction and ensure safety in production, generally requires online analysis, and it requires continuous, accurate, economic and durable. With the rapid development of science and technology and the global economy, the emission of industrial waste gas has become a major killer of air pollution. Therefore, the development and application of industrial waste gas continuous monitoring system (CEMS) has also become a trend. Therefore, the Austrian gas analyzer has gradually been replaced by automatic analytical instruments, such as infrared gas analyzers.
