Effect of heat exchanger structure on scale formation

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In practice, it has been found that the structural shape of the pipeline has a significant impact on scaling. For example, bellows-type pipes can not only force the fluid to flow in a cross-flow manner multiple times along the tube bundle along a specified path, thereby continuously enhancing the turbulence level of the fluid, but also improve heat transfer efficiency, while possessing excellent anti-scaling properties. Its anti-scaling mechanism is as follows: the high-speed turbulence of the fluid within the flow channel makes it difficult for particles in the fluid to settle and form scale. Even if a small amount of scale does form, the turbulent flow of the medium inside and outside the tube exerts strong scouring force on the tube walls, resulting in strong anti-scaling capabilities. Furthermore, the bellows experience strain due to the temperature difference stress between the tube side and the shell side, which causes microscopic changes in the curvature of the bellows with its elastic properties, thereby endowing the bellows heat exchanger with the ability to prevent and remove scale.