多功能融合智能化高压变量活塞电机泵马达的能量回收特性分析

Analysis of Energy Recovery Characteristics of Multi-Function Fusion Intelligent High-Pressure Variable Piston Motor Pump Motor

为研究海水淡化的能量回收效率问题,采用AMESim软件对电机泵马达的液压系统进行整体仿真,研究在输入不同转速下的电机泵马达的流量特性及能量回收率。为验证仿真结果的准确性,建立电机泵马达测试试验台,将试验结果与仿真结果进行对比。结果表明:在生产等量淡水的情况下,带有马达能量回收的装置相较于不带马达功率回收的装置节能效果更明显,且适当提高转速能够增加节能效果;由于试验过程产生泄漏,使得泵与马达侧的试验流量低于仿真流量,但随着电机转速的提升,泵侧流量的差值逐渐增大,而马达侧的流量差值逐渐降低;在额定转速1 500 r/min的工况下,马达能量回收装置的能效利用率达到了95%以上。

In order to study the energy recovery efficiency of seawater desalination,AMESim software was used to simulate the overall hydraulic system of the motor pump motor,and the flow characteristics and energy recovery rate of the motor pump motor at different speeds were studied.In order to verify the accuracy of the simulation results,the test bench of motor pump motor was established,and the test results were compared with the simulation results.The results show that in the case of producing the same output of fresh water,the device with motor energy recovery has a very obvious energy-saving effect compared with the device without motor power recovery,and the appropriate increase in speed can increase the energy-saving effect.The flow test results of the pump side and the motor side are lower than the simulation results,which is due to the more leakage generated during the test process.However,with the increase of motor speed,the difference between the flow rate on the pump side gradually increases,while the flow difference on the motor side gradually decreases.Under the rated speed of 1 500 r/min,the energy efficiency utilization rate of the motor energy recovery device reaches more than 95%.