考虑端盖间隙的旋转式压力能交换器水动力性能研究  

Research on hydrodynamic performance of rotary pressure energy exchanger considering end cover clearance

作　　者：苏永生[1] 易文彬 刘洋[3] SU Yong-sheng;YI Wen-bin;LIU Yang(College of Power Engineering, Naval Univ. of Engineering, Wuhan 430033, China;Dept. ofBasic Courses, Naval Univ. of Engineering, Wuhan 430033, China;Office of Educational Administration, Naval Univ. of Engineering, Wuhan 430033, China)

机构地区：[1]海军工程大学动力工程学院,武汉430033 [2]海军工程大学基础部,武汉430033 [3]海军工程大学教务处,武汉430033

出　　处：《海军工程大学学报》2021年第2期24-29,共6页Journal of Naval University of Engineering

基　　金：国家自然科学基金青年科学基金资助项目(51306205)。

摘　　要：以旋转式压力能交换器为研究对象,采用计算流体力学的方法,在考虑端盖间隙的情况下对压力能交换器的运行工况进行了数值模拟。结果表明:能量回收效率计算值与实验测量值吻合较好。在流量相近的工况下,高压出口处压强值越高,回收效率越高;在压强相近的工况下,流量较大时,回收效率较高。通过增加过流管道的直径和数目,可以降低该工况下压力能交换器的流体掺混率且基本不影响回收效率。Rotary pressure exchanger in seawater reverse osmosis was studied.By using the method of computational fluid dynamics,the operation condition of the pressure exchanger was numerically si-mulated considering the end cover clearance.The calculated energy recovery efficiency is in good agreement with the measured value.Under the condition of similar flow rate,the higher the pressure value at the high-pressure outlet,the higher the recovery efficiency is.Under the condition of similar pressure,the recovery efficiency is higher when the flow rate is larger.Increasing the diameter and number of the flow passage can reduce the mixing rate of the fluid in the pressure exchanger under this working condition,with little effect on the recovery efficiency.

关 键 词：反渗透膜 旋转式压力能交换器 流体掺混 计算流体动力学 水动力性能 

分 类 号：U664.5[交通运输工程—船舶及航道工程]