In the system, a friction power generation module is installed on the surface of the marine riser to capture ocean current and convert the ocean current into electric energy, and the ocean current impacts blades to drive a rotor to rotate relative to a stator so as to interfere a flow field around the marine riser; the aluminum electrode plate and the dielectric film slide relatively to generate friction, so that charges of the aluminum electrode plate are transferred to the dielectric film, the contact area of the dielectric film and the aluminum electrode plate is continuously changed in the rotating process, the charge transfer amount of the aluminum electrode plate is different, potential difference occurs, and alternating current is generated; the spiral hollow strake is installed on the surface of the marine riser to damage spanwise correlation of the surface of the marine riser, the spiral hollow strake is connected with the electrolytic anode wire to be polarized as an anode, and chloride ions generated by sodium chloride in seawater electrolyzed by the spiral hollow strake and hydroxyl ions generated by seawater electrolyzed by the copper rod inhibit biological attachment. According to the system, biological attachment on the surface of the marine riser is inhibited, and vortex-induced vibration of the marine riser structure is inhibited.

    一种抑制海洋立管涡激振动和生物附着系统,系统中,摩擦发电模块安装于海洋立管表面以俘获海流转换为电能,海流冲击叶片以带动转子相对于定子转动以干扰海洋立管周围的流场,铝电极片与介电薄膜相对滑动以摩擦导致铝电极片电荷向介电薄膜转移,介电薄膜在转动过程中与铝电极片接触面积不断变化,导致铝电极片电荷转移量存在差异而出现电势差以产生交流电;螺旋空心列板安装于海洋立管表面以破坏海洋立管表面的展向相关性,螺旋空心列板连接电解阳极导线以极化为阳极,螺旋空心列板电解海水中氯化钠产生的氯离子以及铜棒电解海水产生的氢氧根离子抑制生物附着。本系统实现对海洋立管表面生物附着的抑制以及抑制海洋立管结构的涡激振动。


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    Title :

    System for inhibiting vortex-induced vibration and biological attachment of marine riser


    Additional title:

    抑制海洋立管涡激振动和生物附着系统


    Contributors:
    LI PENG (author) / GAO LIANJIE (author) / LIU ZHEN (author) / HOU HAO (author) / SU TAINING (author) / ZHU LI (author) / ZHANG YU (author) / HAN XINYU (author)

    Publication date :

    2024-06-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / H02N Elektrische Maschinen, soweit nicht anderweitig vorgesehen , ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR



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