| 摘要 |
PURPOSE:To recover copper ion in oil by accommodating benzotriazol in the oil circulation channel. CONSTITUTION:Oil in the body of an oil-immersed electric equipment usually circulates by way of a pump 2, a container 4, and a valve 7. When copper is dissolved in oil, it reacts with benzotriazol adsorbed by a cellulose derivative material 3 in the container 4, and the oil-insoluble solid reactant is collected in a oil filter tank 5. In the case where the processing capability of the cellulose derivative material 3 or the oil filter tank drops, the material 3 or the filter element is exchanged for a new one after the valves 6, 7 are changed over. |
