Gas flow field analysisof the continuous emission monitoring system(CEMS)measuring point

Abstract

Abstract:

Abstract:Since the front flue straight length of the outlet flue continuous emission monitoring system (CEMS) measuring point in unit 9 of Huadian Tianjin Junliangcheng Power Generation Company Limited does not meet the relative requirement in HJ/T 75—2007 Specifications for Continuous Emissions Monitoring of Flue Gas Emitted from Stationary Sources(On Trial),guide plate is installed at the elbow before CEMS measuring point as an optimized measure.The optimized numerical simulation results show that the section flue gas velocity at CEMS measuring point has a deviation of around 6.4% with the standard requirement (less than the standard deviation 7.0%),with a maximum value about 23m/s and a minimum value around 19m/s; while, the resistance of the entire flue only increases 9 Pa and the energy saving effect is good as well.Thus,this optimized measure enables the power plants with restricted site conditions to meet the environmental monitoring requirements.

Key words: ">Keywords:">continuous emission monitoring system (CEMS)">；">flue">；">straight length">；">measuringpoint">；">gas flow field

ZHAO Kai1,ZHANG Jinzhu2,YANG Pengfei3,SHEN Yuhui3. Gas flow field analysisof the continuous emission monitoring system(CEMS)measuring point[J]. Huadian Technology, 2015, 37(10): 51-53.

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Gas flow field analysisof the continuous emission monitoring system(CEMS)measuring point

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