摘要
利用电晕放电生成低温等离子体可以提升轨道交通领域车厢内的空气质量。研究了电极结构类型、电极结构物理参数、电压的匹配性、端块的绝缘处理以及高压电源工艺等关键技术,并基于以上研究设计板板式电极结构和齿筒式电极结构的空气净化器,可应用于地铁车辆和160 km/h动力集中动车组。试验结果表明:电晕放电强度与电极的尖端角度和数量及施加在电极上的电压相关,板板式电极结构适合选用尖端角度60°、数量92个的正极板,齿筒式电极结构适合选用尖端角度30°、数量20个的电极齿,宜使用6.5~8.5 kV的直流高压电源为电极结构供电。在高压输出线与绝缘端块进线口间隙用硅橡胶封堵,并采用真空灌胶技术提升电源的稳定性和安全性,故障率由17%降低至0.143%。在实际运行过程中,基于板板式电极结构和齿筒式电极结构设计的3种净化器产品运行稳定,能够有效改善车厢内空气质量。
The use of corona discharge to generate low-temperature plasma can improve the air quality in the field of rail transit.The key technologies such as electrode structure types,physical parameters of electrode structures,compatibility with voltage,insulation treatment of end blocks,and high-voltage power supply processes were studied.Based on the research above,air purifiers with plate-type electrode structures and cylindrical electrode structures were designed,which were applied to subway vehicles and 160 km/h power concentrated high-speed trains.The experimental results show that the corona discharge intensity is related to the tip angle and quantity of the electrode,as well as the voltage applied to the electrode.For the plate-type electrode structure,a electrode plate with a tip angle of 60° and a quantity of 92 is selected,for the cylindrical electrode structure,electrode with a tip angle of 30° and a quantity of 20is more suitable,and it is recommended to use 6.5~8.5 kV DC as power supply.The gap between the high-voltage output line and the insulation end block inlet is sealed with silicone rubber,and vacuum sealing technology is used to effectively improve the stability and safety of the power supply,reducing the failure rate from 17% to 0.143%.In actual operation,the three purifier products designed based on the plate-type electrode structures and cylindrical electrode structures operate stably and can effectively improve the air quality of trains.
作者
张振甫
徐晓萍
ZHANG Zhenfu;XU Xiaoping(Hefei CRRC Rolling Stock Co.,Ltd.,Hefei Anhui 230012,China)
出处
《高速铁路新材料》
2025年第1期47-52,共6页
Advanced Materials of High Speed Railway
作者简介
第一作者:张振甫(1981-),男,高级工程师。E-mail:010700011034@puzhen.csr.com;通信作者:徐晓萍(1995-),女,硕士。E-mail:1624161079@qq.com。
