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AssigneesCnina University of Petroleum-Beijing, Weihai Hongtong Piping Materials Co., Ltd.
InventorsYingying WANG, Haibo Sun, Chuanbo Cong, Liwei Li, Lusheng Jia, Zhaojun LV, Ke Zhang, Yufang Li, Wei Kong, Zeqing Lin, Hao Yu, Xingwei Li, Yangdong Hu, Guoan Shen
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The present invention relates to a nonmetallic unbonded flexible riser for deep-sea mining and a manufacturing method thereof, wherein the riser includes a lining layer, an internal pressure resistant reinforcing layer, a first anti-wear layer, a first compensation reinforcing layer, a second anti-wear layer, a second compensation reinforcing layer, a third anti-wear layer, a framework layer, a isolation layer, a first tensile reinforcing layer, a fourth anti-wear layer, a second tensile reinforcing layer and an outer coating layer which are sequentially arranged from inside to outside, wherein unbonded connection between adjacent layers is adopted. The present invention may ensure the continuous transportation of the mineral and the seawater inside the flexible mixed transportation pipe, adapt to the severe marine environment and loading condition, and ensure the safety of mining work.
A nonmetallic unbonded flexible riser for deep-sea mining, wherein comprising a lining layer, an internal pressure resistant reinforcing layer, a first anti-wear layer, a first compensation reinforcing layer, a second anti-wear layer, a second compensation reinforcing layer, a third anti-wear layer, a framework layer, a isolation layer, a first tensile reinforcing layer, a fourth anti-wear layer, a second tensile reinforcing layer and an outer coating layer which are sequentially arranged from inside to outside, wherein unbonded connection between adjacent layers is adopted.
Dependencies are inferred from the claim text.