OZONE YIELD CONTROLLING APPARATUS FOR OZONIZERS

摘要

PURPOSE:To perform optimum, cheap and stable control with the titled apparatus by controlling the number of ozonizers to be worked in accordance with the state of application side and regulating the O3 yield of an adjustable ozonizer. CONSTITUTION:The detection value of residual O3 analyzer 6 placed in substance 5 to be treated and desired value (d) of residual O3 concn. preset in residual O3 setter 7 are inputted in residual O3 regulator 8 to allow regulator 8 to output the proper O3 amount for residual O3 as output (f) of regulator 8. The detection value of colorimeter 9 and desired value (e) of chromaticity preset in chromaticity setter 10 are inputted in chromaticity regulator 11 to allow regulator 11 to output the proper O3 amount for chromaticity as output (g) of regulator 11. Addition and subtraction operator 12 outputs the sum of outputs (f), (g), that is, the sum of the proper O3 amount from the viewpoint of residual O3 and the proper O3 amount from the viewpoint of chromaticity. O3 yield regulator 13 receives the output value of operator 12 as a set value and total O3 yield Y0 from adder 4 as a feedback value, and in accordance with the deviation regulator 13 sends control instructions to ozonizer controller 14 only for adjustable ozonizer OZv.