Integrated Impressed Current Cathodic Protection for Wet Crude Handling Vessels

    公开(公告)号:US20200248319A1

    公开(公告)日:2020-08-06

    申请号:US16266260

    申请日:2019-02-04

    摘要: A cathodic protection system includes a vessel for containing a fluid or a mixture of fluids, a plurality of anodes positioned inside the vessel, an encapsulant encapsulating the plurality of anodes, the encapsulant being a wax repellant material that is sufficiently porous to allow ions to pass therethrough, and an impressed current source electrically connected to each of the anodes and the vessel. The impressed current source produces a continuous high current output, and the vessel acts as a cathode when current is applied from the impressed current source. The anodes are monitored and controlled from outside of the vessel using one or more adjustable resistors, which are installed in a junction box located either inside or outside the vessel. The resistors are configured to adjust the individual anode current output based upon a predetermined cathodic protection criteria.