To provide a corrosion prevention device capable of changing magnitude of corrosion prevention current as necessary.SOLUTION: A corrosion prevention device 100 that is a corrosion prevention device provided on a marine vessel having a hull 1 having conductivity includes: a plurality of insulators 2 provided on the outer surface of the hull; a plurality of sacrificial anodes 3 that are mounted on the hull through the insulators and perform corrosion prevention of a propeller 41; a plurality of auxiliary anodes 6 provided in places different from the sacrificial anodes; a plurality of first variable resistors R1 provided between the sacrificial anodes and the hull; and a plurality of second variable resistors R2 provided between the auxiliary anodes and the hull. The above configuration can provide a corrosion prevention device capable of changing magnitude of corrosion prevention current as necessary.SELECTED DRAWING: Figure 1

    【課題】必要に応じて防食電流の大きさを変化させることが可能な防食装置を提供する。【解決手段】防食装置100は導電性を有する船体1を有する船舶に設けられる防食装置であって、船体の外表面に設けられた複数の絶縁体2と、絶縁体を介して船体に取り付けられ、プロペラ41を防食する複数の犠牲陽極3と、犠牲陽極とは異なる場所に設けられた複数の補助陽極6と、犠牲陽極と船体との間に設けられた複数の第一可変抵抗器R1と、補助陽極と船体との間に設けられた複数の第二可変抵抗器R2と、を備える。上記構成によれば、必要に応じて防食電流の大きさを変化させることが可能な防食装置を提供することができる。【選択図】図1


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    Title :

    CORROSION PREVENTION DEVICE


    Additional title:

    防食装置


    Contributors:

    Publication date :

    2022-08-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / C23F Nichtmechanisches Entfernen metallischer Stoffe von Oberflächen , NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACES



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