Combined turbulence anti-scale insert in heat exchange tube

The invention relates to a combined turbulence anti-scale insert in a heat exchange tube. The insert comprises spiral links and a support piece. According to the design, the spiral links and the support piece are combined, and the radius of the whole is slightly smaller than that of the heat exchange tube. An inner device is the support piece; axially arc support plates uniformly distributed are arranged on the support piece; rotation holes in the support plate are used for mounting of the spiral links; the support plates are connected with a hollow shaft via welding; a rotation end cover is arranged at one end of the support piece; rotation blades are mounted in the end cover; and the end cover and the support piece are in a coaxial structure. Outer devices are the spiral links, and shafts on the spiral links are connected with the holes in the support plates in a clearance fit manner. In a working state, the rotation end cover generate a rotation torque due to the impact of liquid to drive the insert to rot