| 摘要 |
<p>In order to protect a warm-water container (1, 2, 3) and piping and fittings downstream thereof against corrosion, there is provided a combination of sacrificial anodes (A, B, C) and inert anodes (D, E, F, G), fed by direct current, arranged in the container (1, 2, 3). The inert anodes (D, E, F, G) are arranged in the lower part adjacent to the cold-water inlet point (6) and in the central part, pure-aluminium sacrificial anodes (A, B, C) are arranged in the central and in the upper container part adjacent to the warm-water outlet (7). Thus the normal drawback of inert anode systems, the formation of oxyhydrogen, is prevented, as the aluminium of the sacrificial anodes (A, B, C) dissolving anodically binds the oxygen rising from the inert anodes (D, E, F, G). At the same time, such an arrangement extends the useful life of the sacrificial electrodes and reduces the formation of anode sludge on the container bottom as well as the current consumption. <IMAGE></p> |
