介绍了直接利用立式下流水冷设备冷却水的自身位能、驱动管内塑料扭带自转实现自动除垢防垢的结构原理，对低流速下的可行性问题进行了等值能量理论分析，论述了除垢防垢用的塑料扭带结构的优化研究结果，叙述了初次装机工业应用试验的情况和效果。 This paper introduces the structure principle of utilizing the potential energy of the cooling water of vertical downflow water cooling equipment directly to drive the plastic twist band to rotate automatically in the pipe and makes the equivalent energy theory analysis on the feasibility of low flow rate. The results of the optimization research on the structure of plastic twisting tape used for scale and scale control are described, and the situation and effect of initial installed industrial application test are described.