深海水下分离器液控系统研究

发布时间：2018-06-09 12:17

本文选题：液压控制系统 + 液压软管　；参考：《中国石油大学》2011年硕士论文

【摘要】：深海水下分离器液压控制系统主要用于控制水下分离器上各阀门的开启和关闭,实现控制各个进出口油气水的流量和压力等,从而保证水下分离器高效安全的工作。本文按照“先选执行机构,后设计液压管线及液压附件”的方法,通过理论计算、理论推导和动态仿真分析研究了深海水下分离器的液压控制系统。首先介绍了水下分离器的机械结构和液压系统,阐述了研究水下分离器液压控制系统的目的和意义。确定出液压控制系统总体结构为:水上液压控制系统、液压管线及水下液压控制系统。接着根据液压控制系统的设计方法,通过理论计算,确定出执行机构、水上蓄能器和水下蓄能器的容积;同时对控制回路内多个控制阀进行了结构设计和参数计算。然后对液压软管建立数学模型,通过理论推导,推导出长软管的液阻、液容和液感特性,得出长软管的液阻特性。最后借助液压仿真软件AMESim对定压输出减压阀和换向阀进行了仿真研究,得出减压阀可以保证液压油压力的稳定,换向阀换向动作迅速,输出流量大,能够及时进行换向。根据液压控制系统原理图建立了系统的仿真模型,并进行了详细的动态仿真。从仿真结果得出,执行机构能够在规定时间内对阀门的开度进行及时的开启和关闭。同时还仿真分析了当系统出现故障时,无法顺利的关闭执行机构,启动HPU泄压阀,对执行机构进行泄压。通过仿真分析得出,泄压阀可以在规定的时间内关闭多个执行机构,保证系统的安全。
[Abstract]:The hydraulic control system of deep-sea underwater separator is mainly used to control the opening and closing of each valve on the underwater separator, and to control the flow and pressure of each inlet, outlet, oil, gas and water, so as to ensure the high efficiency and safety work of the underwater separator. In this paper, according to the method of "first selecting the actuator, then designing the hydraulic pipeline and the hydraulic accessories", the theoretical calculation is carried out. The hydraulic control system of deep-sea underwater separator is studied by theoretical derivation and dynamic simulation. Firstly, the mechanical structure and hydraulic system of underwater separator are introduced, and the purpose and significance of studying hydraulic control system of underwater separator are expounded. The overall structure of hydraulic control system is: water hydraulic control system, hydraulic pipeline and underwater hydraulic control system. Then, according to the design method of hydraulic control system, the volume of actuators, water accumulators and underwater accumulators is determined by theoretical calculation. At the same time, the structure design and parameter calculation of many control valves in the control circuit are carried out. Then the mathematical model of hydraulic hose is established, and the characteristics of liquid resistance, liquid volume and liquid inductance of long hose are deduced by theoretical derivation, and the liquid resistance characteristic of long hose is obtained. Finally, with the aid of the hydraulic simulation software AMESim, the constant pressure output pressure reducing valve and the directional valve are simulated and studied. It is concluded that the pressure reducing valve can guarantee the stability of the hydraulic oil pressure, the reversing valve moves quickly, the output flow is large, and the reversing valve can carry on the commutation in time. According to the schematic diagram of hydraulic control system, the simulation model of the system is established, and the detailed dynamic simulation is carried out. The simulation results show that the actuator can open and close the valve in time. At the same time, it is also simulated and analyzed that when the system fails, it can not close the actuator smoothly, start the HPU relief valve, and discharge the pressure to the actuator. The simulation results show that the relief valve can close several actuators in a specified time to ensure the safety of the system.
【学位授予单位】：中国石油大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH137

【引证文献】