| 摘要 |
PURPOSE:To prevent metal ion which are harmful to human being from dissolving out of an electrode during electrolysis by coating the surface of a positive pole and a negative pole with a metal ion dissolution preventing film. CONSTITUTION:The surface of a positive pole 22 and a negative pole 21 is coated with a non-oxidative conductive material (e.g. platinum) to form one or more layers of metal ion dissolution preventing film 24. As a result, the dissolution of metal ions which are harmful to human being is prevented. Moreover, the positive pole 22 and the negative pole 21 are made possible to move toward the parting direction against the spring part 26 by electromagnetic coils 30-33 and in the case the porality of the positive pole 22 and the negative pole 21 is reversed by changing the applied voltage to remove scales, the distance between both poles is widened to prevent ions from accumulating again on the opposite side. Further, the rear sides of the positive pole 22 and the negative pole 21 are coated with an insulating material (e.g. epoxy resin) to prevent scales from adhering to the rear sides, so that the flowing route is prevented from narrowing and the movement of the negative pole 21 and the positive pole 22 is not hindered. |
