高压电器2024，Vol.60Issue(4)：207-213,7.DOI:10.13296/j.1001-1609.hva.2024.04.025
基于超疏水滤膜的绝缘油多级过滤除水新工艺
New Technology of Multi-stage Filtration of Water Removal of Insulating Oil Based on Super-hydrophobic Filter Membrane
摘要
Abstract
The insulating oil with low water content has high insulation level and is an important assurance of safe and stable operation of power grid.Thus,the water content of the insulating oil needs to be maintained in a low range and the problem about super hydrophobic filter membranes used for removing water from the insulating oil needs to be solved.In this paper,the super hydrophobic SiO2 nanoparticles are uniformly bonded to the surface of the PP filter element,filter cloth,and filter paper by adopting the spraying method so to obtain the hydrophobic filter membrane.On this basis,the hydrophobic PP filter element is suitable for the large-flux primary filtration of insulating oil due to its low precision.The hydrophobic filter cloth combined with tandem filter device is used for secondary stage filtration,which can withstand higher oil pressure while removing the water from the insulating oil further.The super-hydropho-bic filter paper is suitable for the efficient tertiary filtration due to its outstanding ability of water removal.This multi-stage filtration can reduce the water content of the insulating oil below 10 mg·L-1.Multi-stage filtration not only has high water removal efficiency,but also meets the water removal requirements of different types of insulating oils.关键词
绝缘油/超疏水/除水/多级过滤Key words
insulating oil/super-hydrophobic/water removal/multi-stage filtration引用本文复制引用
许培俊,韦会逆,何运华,邱方程,刘荣海,郭新良..基于超疏水滤膜的绝缘油多级过滤除水新工艺[J].高压电器,2024,60(4):207-213,7.基金项目
国家自然科学基金(51978072) （51978072）
陕西省重点研发计划项目(2023QCY-LL-26,2022GY-371) （2023QCY-LL-26,2022GY-371）
长安大学中央高校基本科研业务费专项资助(300102312404). Project Supported by National Natural Science Foundation of China(51978072),Key Research and Development Program of Shaanxi Province(2023QCY-LL-26,2022GY-371),Fundamental Research Funds for the Central Universities,CHD(300102312404). （300102312404）
