Semi-permeable membrane element and semi-permeable membrane element system

The invention belongs to the field of semi-permeable membrane elements, the semi-permeable membrane element comprises a semi-permeable membrane, a permeated water collecting pipe, a raw water side flow path material and a permeated side flow path material, and pressure loss caused by fluid flow is further reduced on the basis of high water production of the membranes through the high-fold semi-permeable membrane and the low-pressure-loss raw water side flow path material. Meanwhile, the physical damage risk of the membrane surface in the rolling or high-flow-speed operation process is reduced through the interaction of the high-fold semi-permeable membrane and the raw water side flow path material, and the operation stability is improved. 本发明属于半透膜元件领域，半透膜元件含有半透膜、透过水集水管、原水侧流路材和透过侧流路材，通过高褶皱半透膜和低压力损失原水侧流路材在膜本身高造水的基础上进一步降低因流体流动造成的压力损失，使得省能源有益效果进一步扩大，同时通过高褶皱半透膜和原水侧流路材的互相作用降低膜面因卷制或高流速运行过程中的物理损伤风险，提高运行稳定性。