| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for removing precipitation on a liquid contact surface in a metallic mechanical structure installed underwater, the device that needs no large-scale equipment, that is safe and excellent in operability because of complete unmanned automation, and that enables precipitation removing effect to be obtained on an energy-saving, low-cost and everlasting basis. SOLUTION: A positive output terminal 5 of a variable constant voltage DC power unit 4 is connected to an electrically conductive air lead-through part 2 in an underwater metallic mechanical structure 1 (structure) installed in an electrolyte 7 in a water tank; a negative output terminal 6 is connected to a negative electrode 3 installed in the electrolyte 7 oppositely in a non-contact state with the structure 1; the electric recovery circuit of the variable constant voltage DC power unit 4 is formed through the electrolyte 7 by voltage application; and thus, a weak current is designed to flow onto the surface of the liquid contact part of the structure 1.
|
