The Design Of Wireless Monitoring System For Emission

Continuous Emission Monitoring System is a modern way to monitor pollutants in flue gas emissions.CEMS system not only can be used to monitor emissions compliance,but also can be used for equipment(dust removal,desulfurization,boiler combustion conditions) run a check, fault diagnosis.Because of these desulphurization and electric dust removal equipment with high prices, the price of the configured Continuous Emission Monitoring System was also higher(about three hundred thousand yuan or more).Now for the small coal-fired boilers launched a new desulfurization,Deaminase and ESP equipment, the price dropped significantly, impossible to configure testing equipment of hundreds of thousands of yuan.Therefore, this paper on the basis of the original monitoring system be improved to reduce costs and improve value for money,so that the system can be applied to the transformation of the smaller coal-fired boiler flue gas,to achieve the environmental protection equipment monitoring.This paper outlines the concept and role of CEMS, and discuss the application status and the development process at home and abroad,ans also describes the structure and work principle of CEMS.It improve the original analysis system about gaseous pollutants,mainly in replacing the gas sensor,making the product prices declined significantly,and also designed gas path selection circuitry, signal conditioning amplifier circuit, and A / D converter circuit for the replaced electrochemical sensor.This pape also add the wireless communication module to avoid the problem that onstruction cumbersome and environmental constraints of the traditional cabling making the data transmission more flexible and convenient showing on the screen.This not only can Easy to be real-time monitoring,but also can improve the scalability of the system. The CEMS software have the following features.For example low cost, simple operation, scalability, easy maintenance and upgrades,and also can monitor the flue gas emissions accurately and stably,making it more convenient to monitor the flue gas emissions online for the user.In summary, this system has good prospects.