| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an apparatus for inhibiting the deposition of scale by injecting a scale inhibitor based on the decrease rate of the dissolved component concentration of a fluid to control the decrease rate of the dissolved component concentration to be a predetermined value. <P>SOLUTION: The apparatus for inhibiting scale includes: concentration meters 2 and 3 for measuring the dissolved component concentration of the fluid; a scale inhibitor injection part 5 for injecting the scale inhibitor, which controls the deposition of the dissolved component, into the fluid; and a control part 4 for controlling the injection amount of the scale inhibitor based on the decrease rate of the dissolved component concentration, calculated from the dissolved component concentration of the fluid measured by the concentration meters 2 and 3 at different time, or a decrease rate coefficient. <P>COPYRIGHT: (C)2012,JPO&INPIT |
