张飞凡, 张玉, 姚爽等. 海洋LCO2漂浮软管的力学性能分析研究. 力学与实践, 2024, 46(3): 1-10. doi: 10.6052/1000-0879-23-635
引用本文: 张飞凡, 张玉, 姚爽等. 海洋LCO2漂浮软管的力学性能分析研究. 力学与实践, 2024, 46(3): 1-10. doi: 10.6052/1000-0879-23-635
Zhang Feifan, Zhang Yu, Yao Shuang, et al. Investigation of the mechanical properties for offshore LCO2 floating hose. Mechanics in Engineering, 2024, 46(3): 1-10. doi: 10.6052/1000-0879-23-635
Citation: Zhang Feifan, Zhang Yu, Yao Shuang, et al. Investigation of the mechanical properties for offshore LCO2 floating hose. Mechanics in Engineering, 2024, 46(3): 1-10. doi: 10.6052/1000-0879-23-635

海洋LCO2漂浮软管的力学性能分析研究

INVESTIGATION OF THE MECHANICAL PROPERTIES FOR OFFSHORE LCO2 FLOATING HOSE

  • 摘要: 海洋封存二氧化碳是实现我国“双碳”战略目标的有效措施。采用海上平台注入CO2的方式进行封存作业,在CO2输送环节可采用漂浮式软管作为输送管道。本文依据现行标准和输送作业需求提出了一种漂浮式液态二氧化碳(liquid CO2,简称LCO2)输送软管的复合结构形式,建立了其有限元模型,评估了软管在内压、拉伸和弯曲载荷作用下的损伤状态,得到了增强钢丝和增强帘线的损伤状态随载荷变化的规律,研究了增强钢丝的螺旋角度对软管力学性能的影响规律,对增强钢丝的螺旋角度进行了优化。该研究可为漂浮式LCO2输送软管的设计和选用提供技术参考。

     

    Abstract: CO2 ocean storage is an effective measure to realize the strategy of the carbon peaking and carbon neutrality in China. When CO2 is injected into ocean with the offshore platforms for storage, the floating hoses can be used as the pipelines in the CO2 transportation process. In this paper, a composite structural form of floating LCO2 transportation hose is proposed according to the current standards and transportation requirements, the finite element model is also developed. The damage states of hose are evaluated under the internal pressure, tensile and bending loads. The variation patterns of the damage state of reinforced steel wires and reinforced cords with load are obtained. The influence law of the helix angle of the reinforced steel wire on the mechanical properties of the hose is investigated, and the helix angle is optimized. This study can provide technical reference for the design and selection of floating LCO2 transportation hose.

     

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