国内创新水下球型法兰设计研究

以水下球型法兰国产化作为出发点,对水下产品中风险和技术难点相对集中的球型法兰进行研究。从水下球型法兰的特点进行介绍,对比国内外球型法兰的发展情况,通过国内知名海洋石油水下法兰供应商对球型法兰的研发,结合东海某项目水下用球型法兰的设计关键参数、制造及后续整体试验验证,得到其在国内海油水下项目适用性评估的结论,为以后类似水深和工况的国产化球型法兰的应用提供参考。

Study on Design of Domestic Innovation Subsea Spherical Flange

To promote localization process of subsea spherical flange in China, an intensive study on subsea spherical flange, which is full of technical difficulties and high risks, has been conducted in this paper. Firstly, a brief introduction to the characteristics of subsea spherical flange has been given, and then the development situations of subsea spherical flange in domestic and foreign countries are compared. Finally, based on the research and development results by the well-known offshore oil domestic subsea spherical flange supplier, combined with the key design parameters of subsea spherical flange which will be used in one project in the East China Sea, a serials of subsea spherical flange manufacturing and follow-up overall system testing have been done. It is concluded that the subsea spherical flange is suitable in subsea application, which lay the technical basis for future application of domestic spherical flange in similar cases.