This paper proposes a new way,in which the plastic twisted strip-inserts are used to solve the wear and tear problem and the special inlet bearing enlarges t.

• 为此,文章提出了以大截面塑料螺旋线取代钢丝螺旋线解决传热管壁的磨损问题,以预旋结构的管口轴承座-冲推动力轮来强化自转塑料螺旋线的清洗动力矩。