Method for Monitoring Average Flow Velocity of Fumes by Mean of Velocity Field Constant
In order to achieve the target of controlling SO2 emissions in fumes in a short period of time in China, it is necessary to develop a SO2 on-line monitoring system (CEMS) that is suitable for China. To monitor total emissions of SO2 in fumes, the concentration of SO2 in the fumes and fumes flow rate must be monitored simultaneously. To monitor fumes flow rate, first we must monitor its average flow velocity, this is a major technical problem need to solve in the SO2 CEMS. By means of study on velocity field constant in flue, An advanced method for monitoring average flow velocity of fume by mean of velocity field constant is presented, meanwhile an innovative device has been developed to detect velocity field constants automatically, which has resolved the technical difficulty in automated monitoring of fume average velocity in the flue. Through experiment and testing, the monitoring method researched is correct, structure of detecting device is reasonable, its monitoring results are stable and reliable.