摘要
压力补偿器是深水液压系统的重要部件,对使用液压驱动的深海装备,压力补偿器可消除海水压力对液压系统的影响。当深海装备使用非对称液压缸作为执行元件时,非对称液压缸两个油腔的流量差会引起压力补偿器补偿压力的波动,波动幅值过大会导致补偿器损坏。以20 m海底钻机液压系统滚动膜片式压力补偿器为研究对象,介绍了滚动膜片式压力补偿器组成及原理,提出了20 m海底钻机工作时液压系统最大补偿流量的计算方法,利用AMESim分析了最大补偿流量引起补偿器补偿压力波动的规律,最后通过高压密封舱模拟了外部压力变化下压力补偿器对密闭腔体静态补偿特性。结果表明:压力补偿器的性能满足20 m海底钻机液压系统的使用要求。
Pressure compensator is an important part of deepwater hydraulic system,for deep-sea equipment drived by hydraulic pressure,the pressure compensator can eliminate the influence of seawater pressure on the hydraulic system.When the deep-sea equipment uses asymmetric hydraulic cylinder as the actuator,the flow difference between the two oil chambers of the asymmetric hydraulic cylinder will cause the fluctuation of the compensation pressure of the pressure compensator,excessive fluctuation amplitude may cause damage to the compensator.Take the rolling diaphragm pressure compensator of 20m subsea drill hydraulic system as the object of study,introduces the composition and principle of rolling diaphragm type pressure compensator,presents a method to calculate the maximum compensation flow of the hydraulic system for 20 m subsea drill,analyzes the fluctuation law of compensation pressure by AMESim.At last,the static compensation characteristics of the pressure compensator to the closed chamber under the change of external pressure are simulated through the high-pressure sealed chamber.The results show that the performance of the pressure compensator meets the requirements of the 20 m subsea drill hydraulic system.
作者
刘广治
LIU Guang-zhi(Beijing Institute of Exploration Engineering,Beijing 100083)
出处
《液压与气动》
北大核心
2024年第3期23-30,共8页
Chinese Hydraulics & Pneumatics
基金
国家重点研发计划(2021YFC2800804,2021YFC2801501)
省部级地质调查项目(DD20221722)。
关键词
海底钻机
AMESIM
压力补偿器
滚动膜片
deep-sea operation equipment
AMESim
pressure compensator
rolling diaphragm
