水下控制模块液压系统控制性能研究

Study on the Control Performance of Subsea Control Module Hydraulic System

为研究水下2 000 m控制模块SCM液压系统在不同工况下的控制性能,建立水下阀门执行器开启和关闭过程动力学模型、长软管模型、电液换向阀模型,对相关参数进行计算,利用AMESim软件对整个液压系统进行仿真,得出执行器、液压动力源和水下控制模块之间的系统压力、回油压差和执行器活塞杆位移的动态性能关系,同时在SCM测试装置上利用SCM液压系统开启一个和多个阀门执行器,得到开启执行器供油压降对液压系统执行性能的影响。结果表明:该液压系统能对12路油路进行控制,水下紧急关断8个执行器比单个执行器延长17 s;液压系统完全开启和关闭单个执行器的每个动作在10 s以内;开启的油路越多,新开启油路压降就会越小,响应速度越快。

To investigate the control performance of subsea control module（ SCM） hydraulic system at the depth of 2 000 m,the dynamic models of the open and close of valve actuator,long hose and electro-hydraulic valve were established. The simulation of the whole hydraulic system was carried out by AMESim software,and the dynamic performance relations of the system pressure,oil pressure difference and actuator rod displacement were obtained. While,it was to open one and multiple valve actuators on the SCM test device,the influence of the actuator pressure drop on the performance of the hydraulic system was achieved. The results show that the hydraulic system can be used to control the 12 way oil; the time shuting down 8 actuators extends 17 s than that of single actuator in an emergency; the more the oil circuit is opened,the smaller the pressure drops.