基于AMESim的海水淡化斜盘柱塞式能量回收装置运行性能分析

为满足中小型海水淡化系统节能降耗需求，设计开发了一种新型斜盘柱塞式能量回收装置，并基于AMESim仿真分析软件构建了斜盘柱塞式能量回收装置的液压仿真模型及与之配套的反渗透海水淡化系统流体计算模型，对斜盘柱塞式能量回收装置在海水淡化系统中的耦合运行性能进行了模拟研究。结果表明：在装置高压进流压力为6.0 MPa，设计处理量为18 m³·h^-1及斜盘转速735 r·min^-1条件下，装置中增、泄压流体均表现出较好的流动稳定性，增、泄压流体的流量脉动率最大为1.48%，压力脉动率最大为2.71%。在10~25 m³·h^-1范围内，随处理量增加，流量及压力的最大脉动率只比设计处理量时增加了0.1%左右，说明装置具有良好的容量灵活性，且综合能量回收效率始终保持在97%以上。斜盘柱塞式能量回收装置良好的流量操作弹性和较高的能量回收效率，为中小型海水淡化系统的高效可靠运行提供了一种新的选择。

Analysis of operation performance of a swash plate plunger energy recovery device based on AMESim

In order to meet the needs of energy saving and consumption reduction in small- and medium-sized seawater desalination system, a new swash plate plunger type energy recovery device was designed and developed. Based on AMESim simulation software, the hydraulic simulation model of swash plate plunger type energy recovery device and the fluid calculation model of reverse osmosis desalination system are constructed, and the coupling operation performance of swash plate plunger type energy recovery device in desalination system is simulated. The research results show that under the condition of 6.0 MPa high pressure inlet pressure, 18 m³·h^-1 design capacity and 735 r·min^-1 swash plate speed, the maximum flow and pressure fluctuation rates of the increased and relieved fluids are 1.48% and 2.71%. The increased and relieved fluids show good flow stability during the operation of the unit. At range of 10-25 m³·h^-1, with the increase of capacity, the maximum fluctuation rate of flow and pressure relief fluid increases to 1.54%, the maximum fluctuation rate of pressure increases to 2.83%, and the maximum fluctuation rate of flow and pressure only increases by about 0.1% compared with the designed capacity, which indicates that the device has good capacity flexibility and the comprehensive energy recovery efficiency is always above 97% throughout the variable capacity range. The swash plate plunger type energy recovery device provides a new choice for the efficient and reliable operation of small and medium-sized desalination systems due to its good flow operating flexibility and high energy recovery efficiency.