| abstract |
A dosage system for feeding a fluid (A) to a static mixer ( 1 ), said system comprising a tank ( 2 ) containing said fluid (A) at a predetermined pressure, a fluid passage ( 3 ) connecting said container ( 1 ) and tank ( 2 ), a control valve ( 4 ) provided within said fluid passage ( 3 ) to control the flow of said fluid (A) from said tank into said container; and a controller ( 6 ) for receiving a target flow rate (SP_Q) of said fluid (A), and an actual flow rate (PV_Q) of said fluid (A), and for outputting a control signal (MV_L) to said control valve ( 4 ) indicating a valve position to adjust the flow rate. Further provided is a method for controlling said dosage system. |