| 摘要 |
PURPOSE:To eliminate the need for a wiring to an anticorrosive electrode and to simplify maintenance by supporting the anticorrosive electrode in a body to be protected from corrosion and applying an electric power generated by the energy of a fluid in the body between the body and electrode. CONSTITUTION:The rod-shaped anticorrosive electrode 84 is fixed to a pipe joint 10 to be protected from corrosion. A power is supplied to the electrode 84 by a power generator 81 supported close to the mounting hole 11 of the joint 10. A power is generated in the generator 81 by the energy of a liq. flowing in the joint 10, and the generated power is supplied to a controller 83. The temp., pH and conductivity of the water flowing in the joint 10 are detected by a water quality sensor 82, and the current and voltage to be supplied between the electrode 84 and the joint 10 are controlled by the controller 83 based on the detection result. |
