| On-line monitoring system is also called online analytical system or process analysis system, the system can be installed directly in the industrial production process as well as other origin body engineering field, continuously, and periodically the material component content, physical property parameters, such as automatic analysis and detection of complex technical system. One of the major role in affecting the safe operation of the production factors to timely monitoring, to ensure the safe operation of the production. On-line monitoring system by online analyzer, sample processing system, and the utility of three parts, sample processing system should meet the requirements of engineering application online analyzer suggest. At present, on-line analyzer in the production of the application of more and more widely, but the actual engineering application effect is not good, its main reason is that the sample processing system could not reach the requirements of online analysis system for engineering application. Safe production of coal mine gas extraction pipe with on-line monitoring system, due to the use conditions, gas pipeline gas containing water vapor, dust content, there is a huge challenge to make the sample gas handling system, the existing gas on-line monitoring system for large amount of complicated structure, system maintenance and poor reliability and short service life of the analyzer, coal industry has long failed to be effectively solved, greatly limits the popularization and application of gas on-line monitoring system, on-line monitoring of gas limited use undeserved, can not effectively carried out on the gas concentration monitoring and early warning, eventually leading to coal mine gas accident frequency, cause the bad social influence, seriously affect the normal production and life.The purpose of this subject is to develop a set of simple structure, good reliability and can achieve less maintenance gas on-line monitoring system, implementation of pipeline gas on-line monitoring technology upgrading. On-line monitoring industry for this purpose, based on the analysis of technical characteristics and technical status quo of gas on-line monitoring system, on the basis of combining the latest development of on-line monitoring technology industry concept and theoretical achievements, creatively USES the concept of in situ treatment method of sample gas handling, and issue a nano hydrophobic properties of SiC high efficiency filter, super efficient aggregation film sample gas handling parts, after the overall optimization design, developed the in situ monolithic gas sample gas processing plant. At the same time, according to the original catalysis, thermal conductivity, infrared analyzer technology defects, the principle of selection principle of the laser gas analyzer and in situ monolithic gas sample gas processing plant for effective integration, finally successfully developed the in situ monolithic gas on-line monitoring system. Compared with the traditional gas on-line monitoring system, this system has simple structure, low manufacture cost, can adapt to gas pipeline gas dust content and high water content and low pressure sampling difficulties such as bad sample gas condition, realized the on-line monitoring system for coal mine industry gas engineering technology upgrading. System testing and engineering application shows that the basic coordinated operation implements free maintenance, become the industry an important segment of engineering and technology innovation, to achieve the expected development goal and application effects of in situ monolithic gas on-line monitoring system for gas extraction pipeline safely in real-time monitoring has an important significance and application value. |