Power Station Flue Gas Desulfurization System Based on Automatic Online Monitoring Platform

Abstract

SO 2 and NOx are important components of atmospheric pollutants produced by coal combustion pro- cess and significant emissions of these gases keep de- teriorating urban air quality and cause a great threat to soil, water and forest. The increasingly serious environ- mental pollution not only resulted in significant economic losses, but also had a great impact on human health. Application of automated on-line monitoring system is one of the effective ways to improve environmental monitor- ing technology. Therefore, according to actual needs, automated environmental monitoring technology is applied to build up an environmental monitoring system with in- telligence, high precision and high reliability, which can be used in the specific environment of daily living and production. This study puts forward an automatic envi- ronmental monitoring technology. With comprehensive consideration of working environment particularity of the environmental parameter monitoring system as well as working characteristics of Single Chip Microcomputer (SCM) and front-end sensor, a design scheme for envi- ronmental parameter monitoring system with AT89C52 as the core is put forward. With a combination of data acqui- sition, analysis and processing, display and data com- munications, the scheme can ensure the efficient and stable realization of all design requirements by the sys- tem. According to the design requirements, signal acqui- sition and processing is realized, corresponding actua- tors are controlled and necessary assessment is provided. Meanwhile, all data are centralized displayed and uploaded to upper computer.