液缸式隔水管张紧系统抗反冲控制阀研究

隔水管张紧系统是海洋浮式钻井装置的重要子系统，主要为海洋钻井隔水管提供恒定张力，以减少因钻井平台升沉和漂移运动对隔水管系统总成造成的损害。在紧急脱离时，为保障系统安全，隔水管不能与上端钻井船或平台以及下端井口相撞。文章以南海某钻井平台为基础，设计了一种隔水管抗反冲控制阀，并应用在液缸式隔水管张紧系统中，验证其抗反冲控制的效果。文章首先介绍了抗反冲控制阀的结构及工作原理，接着基于AMESim环境建立了隔水管张紧系统抗反冲控制阀的仿真模型，并将南海某钻井平台实际参数输入到仿真模型中，验证抗反冲控制阀的工作性能，最后将设计的抗反冲控制阀应用到液缸式隔水管张紧系统中，验证了其抗反冲控制效果。仿真结果表明，该抗反冲控制阀能够在紧急脱离时刻及时做出响应，所设计的阀门是有效的。

Research on Anti-backlash Control Valve of Hydraulic Cylinder Riser Tensioning System

The riser tensioning system is an important subsystem of the marine floating drilling device. It mainly provides constant tension for the marine drilling riser to reduce the damage to the riser system assembly caused by the drilling platform heave motion and drift. During the emergency disengagement, to ensure the safety of the system, the riser cannot collide with the upper hull and the lower wellhead. This paper designs a riser anti-recoil control valve based on a drilling platform in the South China Sea, and the application to a hydraulic cylinder riser tensioning system verified its anti-recoil control effect. First, the structure and working principle of the anti-backlash control valve are introduced, and the simulation model of the anti-backlash control valve of the riser tensioning system is established based on the AMESim platform. Secondly, the actual parameters of a drilling platform in the South China Sea is set into the simulation model to verify the performance of the anti-recoil control valve.Finally, the designed anti-recoil control valve is applied to the hydraulic cylinder riser tensioning system to verify its anti-recoil control effect. The simulation results show that the designed anti-recoil control valve can respond in time at the moment of emergency separation, which implies the effectiveness of the designed valve.