A novel feed spacer for spiral-wound membrane modules is proposed. Based upon a continuous arch-type streamline frame two feed spacers with different node designs were constructed. In the first, Arch-Hole, two elliptic cylinders form a node zone with a passage. The other, named Arch, has a solid node. Their hydrodynamics, fouling and filtration performance were compared with a commercial design. This was a classic net-type spacer with nodes of relatively substantial size. All three were manufactured using 3D printing. Computational fluid dynamics simulation showed that the Arch-Hole design gives a more uniform velocity distribution with fewer dead zones. Subsequent evaluation of this design indicated less foulant accumulation as confirmed by optical coherence tomography and the evolution of channel pressure drop. Measured adenosine triphosphate and total organic carbon values for the module with this spacer were substantially lower than the corresponding values associated with the commercial design. Crucially with the Arch-Hole design, flux values remained higher than for the other two designs. Thus use of this spacer would minimize both capital and operational costs. Compared to the commercial one, use of the Arch-Hole design would reduce the energy cost of filtration significantly beyond the 69 % found for the application considered herein.

提出了一种用于螺旋缠绕膜组件的新型进料隔板。基于连续拱型流线型框架，构建了两个具有不同节点设计的馈电隔板。第一个是Arch-Hole，两个椭圆柱形成一个带有通道的节点区域。另一个名为 Arch，有一个实心节点。它们的流体动力学、结垢和过滤性能与商业设计进行了比较。这是一个经典的网络型间隔器，节点尺寸相对较大。这三个都是使用 3D 打印制造的。计算流体动力学模拟表明，拱孔设计提供了更均匀的速度分布和更少的死区。该设计的后续评估表明，如光学相干断层扫描和通道压降的演变所证实的那样，污垢积累较少。测得的三磷酸腺苷和总有机碳值显着低于与商业设计相关的相应值。至关重要的是，Arch-Hole 设计的通量值仍然高于其他两种设计。因此，使用这种隔板将最小化资金和运营成本。与商业设计相比，拱孔设计的使用将大大降低过滤的能源成本，远远超过本文所考虑的应用所发现的 69%。因此，使用这种隔板将最小化资金和运营成本。与商业设计相比，拱孔设计的使用将大大降低过滤的能源成本，远远超过本文所考虑的应用所发现的 69%。因此，使用这种隔板将最小化资金和运营成本。与商业设计相比，拱孔设计的使用将大大降低过滤的能源成本，远远超过本文所考虑的应用所发现的 69%。