Research on the Selection of Submarine Gully Pumps Based on Submarine Fiber Optic Cable Burial
Submarine fiber-optic cable can enable long-distance information transmission and help to connect tele-communications between countries around the world.However,its laying equipment is complicated;the working environment is bad,and the maintenance is difficult.Submarine gully pump as an important part of it,there are a number of factors to consider when selecting and applying a model.By analyzing the complex marine environ-ment,such as seawater salinity,temperature,sea breeze and waves,and the influence of marine life,etc.,it puts forward recommendations on the selection of materials,structural design,additional protection and other selection of submarine gully pumps.The study shows that,according to the salinity of different sea areas,it is recommen-ded to use 316,316L,904L,duplex stainless steel,super duplex steel,and its corrosion resistance is 304<316<316L<2205<904L<2507;the commonly used materials for water guide bearings include rubber,ceramic,poly-mer material,selon and carbon fiber,and it is recommended to give priority to the selection of selon and carbon fiber materials;the structural design should focus on the number of filter mesh holes,sand resistance,anti-sea life impact;in addition,in the case of higher economic budget,it is also possible to consider adding cathodic protec-tion and surface coating processes to further improve the corrosion resistance,stability and durability of the pump group.This paper's research on the selection of submarine gully pumps can provide a reference for other similar areas of application and promote the development of pumps for offshore platforms.