ELECTRIC ANTICORROSION STRUCTURE FOR EXTERNAL SURFACE OF TANK BOTTOM PLATE

摘要

PURPOSE:To provide an electric anticorrosion structure of the external surface of a tank bottom plate which enables the checking and securing of accurate electric energization. CONSTITUTION:A zinc plate 3 for anticorrosion is arranged at a specified position of the undersurface of a bottom plate 2 of a storage tank and a hole 4 for measuring potential is provided on at least one sheet thereof while a conduit 6 is laid to the outside of the tank bottom plate 2 from the hole 4 for measuring potential. A potential is measured at a specified position of the tank bottom plate 2 from outside a tank side wall 1 through an electrolyte packed into the conduit 6 thereby achieving a check of the electrolyte at an opening of the conduit 6 while securing electric energization.