CAJ | 학술논문

针对阀控式海水淡化能量回收装置增泄压过程中压力波动和浓盐水海水掺混导致反渗透膜组件工作负担变大的问题，对增压容器和增压过程建立模型，使用流体力学软件Fluent仿真增压过程，得到了增压过程液压缸内部流域的压力和速度分布。探究了混合段液柱活塞的形成过程和长度变化，通过对比液压缸结构和进水口流速变化对混合程度的影响，给出了用混合段做液柱活塞的参数特性和适用性，为海水淡化系统余压能回收设计提供依据。
침대벌공식해수담화능량회수장치증설압과정중압력파동화농염수해수참혼도치반삼투막조건공작부담변대적문제，대증압용기화증압과정건립모형，사용류체역학연건Fluent방진증압과정，득도료증압과정액압항내부류역적압력화속도분포。탐구료혼합단액주활새적형성과정화장도변화，통과대비액압항결구화진수구류속변화대혼합정도적영향，급출료용혼합단주액주활새적삼수특성화괄용성，위해수담화계통여압능회수설계제공의거。
To address the increasing workload of reverse osmosis membrane components caused by pressure fluctuation and strong brine water mixing in the process of pressure increase and discharge of valve control type pressure energy recovery device, the pressurized container model and the pressurization process are built,pressurization simulation process is conducted by using the computational fluid dynamics software-Fluent,and the stress and velocity distribution of the pressurization process of hydraulic cylinder inside the basin is obtained. The formation process and change in length of mixing section fluid column piston are explored, the parameters characteristics and applicability of the liquid column piston is provided by comparing the hydraulic cylinder struc-ture and inlet flow rate changes on the mixing degree of influence,which provides the basis for the design of desalination system pressure recycling.