Static mixer the mixing process is carried out by mixing elements of a fixed pipe, due to the mixing of components, the fluid alternately left rotation and right rotation, changing the direction of flow, not only will flow from the Center to the surrounding, and the surrounding fluid into the Center, resulting in a good radial mixing effect. Meanwhile, the rotating action of the fluid itself in the adjacent element will also occur on the connection interface. The perfect radial circulation mix, the fluid in the pipe cross section temperature gradient, velocity gradient and gradient significantly reduce the quality.