收球网和二次滤网是胶球清洗凝汽器管系统与冷却水二次过滤系统中的两大关键设备。本文介绍了最新研制开发的更先进的第三代收球网与二次滤网的结构特点、工作原理及使用性能。 Close the net and the secondary filter is the glue ball cleaning condenser tube system and cooling water secondary filtration system in the two key equipment. This article describes the latest research and development of the third generation of the third generation net and secondary filter net structure, working principle and performance.